diff --git a/.DS_Store b/.DS_Store
index e0e39d2..f8a4d98 100644
Binary files a/.DS_Store and b/.DS_Store differ
diff --git a/SRC/A2NoSlotMidi.xcodeproj/project.xcworkspace/xcuserdata/ericrangell.xcuserdatad/UserInterfaceState.xcuserstate b/SRC/A2NoSlotMidi.xcodeproj/project.xcworkspace/xcuserdata/ericrangell.xcuserdatad/UserInterfaceState.xcuserstate
index 0f77141..4f44096 100644
Binary files a/SRC/A2NoSlotMidi.xcodeproj/project.xcworkspace/xcuserdata/ericrangell.xcuserdatad/UserInterfaceState.xcuserstate and b/SRC/A2NoSlotMidi.xcodeproj/project.xcworkspace/xcuserdata/ericrangell.xcuserdatad/UserInterfaceState.xcuserstate differ
diff --git a/SRC/A2NoSlotMidi/MIDIDRVR.OBJ b/SRC/A2NoSlotMidi/MIDIDRVR.OBJ
index 697b5b3..90bf344 100644
Binary files a/SRC/A2NoSlotMidi/MIDIDRVR.OBJ and b/SRC/A2NoSlotMidi/MIDIDRVR.OBJ differ
diff --git a/SRC/A2NoSlotMidi/MIDIDRVR.OBJ.dsk b/SRC/A2NoSlotMidi/MIDIDRVR.OBJ.dsk
index cfb1892..ba58315 100644
Binary files a/SRC/A2NoSlotMidi/MIDIDRVR.OBJ.dsk and b/SRC/A2NoSlotMidi/MIDIDRVR.OBJ.dsk differ
diff --git a/SRC/A2NoSlotMidi/MIDIDRVR.OBJ.map b/SRC/A2NoSlotMidi/MIDIDRVR.OBJ.map
index c4f5514..3bcde78 100644
--- a/SRC/A2NoSlotMidi/MIDIDRVR.OBJ.map
+++ b/SRC/A2NoSlotMidi/MIDIDRVR.OBJ.map
@@ -1,14 +1,14 @@
 Modules list:
 -------------
 main.o:
-    CODE              Offs = 000000   Size = 0001A8
+    CODE              Offs = 000000   Size = 0001B5
 
 
 Segment list:
 -------------
 Name                  Start   End     Size
 --------------------------------------------
-CODE                  009000  0091A7  0001A8
+CODE                  009000  0091B4  0001B5
 
 
 Exports list:
diff --git a/SRC/A2NoSlotMidi/main.lst b/SRC/A2NoSlotMidi/main.lst
index 1021832..3167ed6 100644
--- a/SRC/A2NoSlotMidi/main.lst
+++ b/SRC/A2NoSlotMidi/main.lst
@@ -16,6 +16,8 @@ Current file: main.s
 000000r 1               ; THROUGH THE APPLE ANNUNCIATOR 0 OUTPUT PORT OF THE GAME CONNECTOR
 000000r 1               ; USING 32 CYCLES PER BIT TO ACHIEVE A 31.25K MIDI BAUD RATE.
 000000r 1               ;
+000000r 1               ; //GS USERS NEED TO RUN THIS PROGRAM IN NORMAL SPEED MODE
+000000r 1               ;
 000000r 1               ; THE OUTPUT IS INITIALIZED TO A HIGH LOGIC VOLTAGE.  WHEN IT GOES
 000000r 1               ; LOW FOR 32 MICROSECONDS, THAT INDICATES THE START BIT OF A MIDI BYTE.
 000000r 1               ; THEN 8 BYTES OF DATA ARE TRANSMITTED, FOLLOWED BY A HIGH STOP BIT.
@@ -32,11 +34,13 @@ Current file: main.s
 000000r 1               ;         TRANSMITTED, AND A POINTER IN $CE,CF (LO,HI) WITH THE ADDRESS OF
 000000r 1               ;         THE DATA BYTES, THEN CALLS THE ENTRY POINT "SENDMSG" TO TRANSMIT
 000000r 1               ;         THE MESSAGE.
-000000r 1               ; $900B = SEND A TEST MESSAGE - C MAJOR CHORD NOTE ONS
-000000r 1               ; $900E = SEND A TEST MESSAGE - C MAJOR CHORD NOTE OFFS
-000000r 1               ; $9011 = RESERVED
-000000r 1               ; $9014 = RESERVED
-000000r 1               ; $9017 = RESERVED
+000000r 1               ; $900B = TURN ALL NOTES OFF
+000000r 1               ; $900E = SEND A TEST MESSAGE - C MAJOR CHORD NOTE ONS
+000000r 1               ; $9011 = SEND A TEST MESSAGE - C MAJOR CHORD NOTE OFFS
+000000r 1               ; $9014 = CHANGE ANNUNCIATOR - MODIFIES CODE TO USE DIFFERENT ANNUNCIATOR
+000000r 1               ; $9017 = ANNUNCIATOR TO USE: 0-3 - only looks at least significant 2 bits
+000000r 1               ; $9018 = CHANGE LOGIC - BIT 7
+000000r 1               ; $901B = SET BIT 7 TO USE NEGATIVE LOGIC
 000000r 1               ;-------------------------------------------------------------------------
 000000r 1               ; Enhancements for 2018:
 000000r 1               ; 1. Disable interrupts during critical timing sections, preserve interrupt status
@@ -74,231 +78,242 @@ Current file: main.s
 000011r 1               TEST2:
 000011r 1  4C rr rr             JMP TESTMSG2        ;SEND TEST MESSAGE 2 - C MAJOR CHORD OFF
 000014r 1                       ;
-000014r 1                       ;RSRVD1:
-000014r 1                       ;JMP INIT
-000014r 1                       ;RSRVD2:
-000014r 1                       ;JMP INIT
-000014r 1                       ;RSRVD3:
-000014r 1                       ;JMP INIT
-000014r 1               ;---------------------------------------------------------------------------
-000014r 1  00           SAVENBYT: .byte $00             ;SAVE AREA FOR NUMBYTES
-000015r 1  00           TEMPA:    .byte $00
-000016r 1  00           TEMPX:    .byte $00
-000017r 1               ;ANNPAIR:  .byte  $00            ; ANNUNCIATOR NUMBER TIMES 2 (1=C05A, 2=C05C, 3=C05E)
-000017r 1               ;---------------------------------------------------------------------------
-000017r 1               INIT:
-000017r 1  2C 59 C0             BIT AN0ON
-00001Ar 1  60                   RTS
-00001Br 1               ;---------------------------------------------------------------------------
-00001Br 1               XMITMSG:
-00001Br 1  A5 D7                LDA NUMBYTES        ;SAVE NUMBER OF BYTES
-00001Dr 1  8D rr rr             STA SAVENBYT        ;BECAUSE WE WILL CLOBBER IT
-000020r 1  A0 00                LDY #$00            ;Y WILL BE AN INDEX INTO THE DATA AREA
-000022r 1               XMITLOOP:
-000022r 1  B1 CE                LDA (DATAPTR),Y     ;GET A DATA BYTE
-000024r 1  20 rr rr             JSR XMITONE
-000027r 1  C8                   INY                 ;POINT TO NEXT BYTE
-000028r 1  C6 D7                DEC NUMBYTES        ;DECREMENT COUNTER
-00002Ar 1  A5 D7                LDA NUMBYTES        ;CHECK IF ZERO
-00002Cr 1  D0 F4                BNE XMITLOOP        ;LOOP UNTIL DONE SENDING ALL BYTES
-00002Er 1  AD rr rr             LDA SAVENBYT
-000031r 1  85 D7                STA NUMBYTES        ;RESTORE ORIGINAL VALUE OF NUMBYTES
-000033r 1  60                   RTS
-000034r 1               ;---------------------------------------------------------------------------
-000034r 1               XMITONE:
-000034r 1  8D rr rr             STA TEMPA           ;SAVE A AND X REGISTERS
-000037r 1  8E rr rr             STX TEMPX
-00003Ar 1               ;
-00003Ar 1  0A                   ASL A               ;SHIFT BIT INTO CARRY
-00003Br 1  AA                   TAX                 ;SAVE CURRENT IMAGE OF DATA BYTE
-00003Cr 1  A9 00                LDA #$00            ;ZERO OUT ACCUMULATOR FOR ADD
-00003Er 1  69 58                ADC #<AN0OFF        ;ADD CARRY TO ANNUNCIATOR ADDRESS
-000040r 1  8D rr rr             STA BIT7+1          ;MODIFY THE XMITBITS SUBROUTINE
-000043r 1  8A                   TXA                 ;RESTORE ACCUMULATOR
-000044r 1               ;
-000044r 1  0A                   ASL A               ;SHIFT BIT INTO CARRY
-000045r 1  AA                   TAX                 ;SAVE CURRENT IMAGE OF DATA BYTE
-000046r 1  A9 00                LDA #$00            ;ZERO OUT ACCUMULATOR FOR ADD
-000048r 1  69 58                ADC #<AN0OFF        ;ADD CARRY TO ANNUNCIATOR ADDRESS
-00004Ar 1  8D rr rr             STA BIT6+1          ;MODIFY THE XMITBITS SUBROUTINE
-00004Dr 1  8A                   TXA                 ;RESTORE ACCUMULATOR
-00004Er 1               ;
-00004Er 1  0A                   ASL A               ;SHIFT BIT INTO CARRY
-00004Fr 1  AA                   TAX                 ;SAVE CURRENT IMAGE OF DATA BYTE
-000050r 1  A9 00                LDA #$00            ;ZERO OUT ACCUMULATOR FOR ADD
-000052r 1  69 58                ADC #<AN0OFF        ;ADD CARRY TO ANNUNCIATOR ADDRESS
-000054r 1  8D rr rr             STA BIT5+1          ;MODIFY THE XMITBITS SUBROUTINE
-000057r 1  8A                   TXA                 ;RESTORE ACCUMULATOR
-000058r 1               ;
-000058r 1  0A                   ASL A               ;SHIFT BIT INTO CARRY
-000059r 1  AA                   TAX                 ;SAVE CURRENT IMAGE OF DATA BYTE
-00005Ar 1  A9 00                LDA #$00            ;ZERO OUT ACCUMULATOR FOR ADD
-00005Cr 1  69 58                ADC #<AN0OFF        ;ADD CARRY TO ANNUNCIATOR ADDRESS
-00005Er 1  8D rr rr             STA BIT4+1          ;MODIFY THE XMITBITS SUBROUTINE
-000061r 1  8A                   TXA                 ;RESTORE ACCUMULATOR
-000062r 1               ;
-000062r 1  0A                   ASL A               ;SHIFT BIT INTO CARRY
-000063r 1  AA                   TAX                 ;SAVE CURRENT IMAGE OF DATA BYTE
-000064r 1  A9 00                LDA #$00            ;ZERO OUT ACCUMULATOR FOR ADD
-000066r 1  69 58                ADC #<AN0OFF        ;ADD CARRY TO ANNUNCIATOR ADDRESS
-000068r 1  8D rr rr             STA BIT3+1          ;MODIFY THE XMITBITS SUBROUTINE
-00006Br 1  8A                   TXA                 ;RESTORE ACCUMULATOR
-00006Cr 1               ;
-00006Cr 1  0A                   ASL A               ;SHIFT BIT INTO CARRY
-00006Dr 1  AA                   TAX                 ;SAVE CURRENT IMAGE OF DATA BYTE
-00006Er 1  A9 00                LDA #$00            ;ZERO OUT ACCUMULATOR FOR ADD
-000070r 1  69 58                ADC #<AN0OFF        ;ADD CARRY TO ANNUNCIATOR ADDRESS
-000072r 1  8D rr rr             STA BIT2+1          ;MODIFY THE XMITBITS SUBROUTINE
-000075r 1  8A                   TXA                 ;RESTORE ACCUMULATOR
-000076r 1               ;
-000076r 1  0A                   ASL A               ;SHIFT BIT INTO CARRY
-000077r 1  AA                   TAX                 ;SAVE CURRENT IMAGE OF DATA BYTE
-000078r 1  A9 00                LDA #$00            ;ZERO OUT ACCUMULATOR FOR ADD
-00007Ar 1  69 58                ADC #<AN0OFF        ;ADD CARRY TO ANNUNCIATOR ADDRESS
-00007Cr 1  8D rr rr             STA BIT1+1          ;MODIFY THE XMITBITS SUBROUTINE
-00007Fr 1  8A                   TXA                 ;RESTORE ACCUMULATOR
-000080r 1               ;
-000080r 1  0A                   ASL A               ;SHIFT BIT INTO CARRY
-000081r 1  AA                   TAX                 ;SAVE CURRENT IMAGE OF DATA BYTE
-000082r 1  A9 00                LDA #$00             ;ZERO OUT ACCUMULATOR FOR ADD
-000084r 1  69 58                ADC #<AN0OFF        ;ADD CARRY TO ANNUNCIATOR ADDRESS
-000086r 1  8D rr rr             STA BIT0+1          ;MODIFY THE XMITBITS SUBROUTINE
-000089r 1  8A                   TXA                 ;RESTORE ACCUMULATOR
-00008Ar 1               ;
-00008Ar 1  20 rr rr             JSR XMITBITS        ;SEND THE BYTE OUT
-00008Dr 1  AE rr rr             LDX TEMPX
-000090r 1  AD rr rr             LDA TEMPA           ;RESTORE X AND A
-000093r 1  60                   RTS
-000094r 1               ;-----------------------------------------------------------------------
-000094r 1               XMITBITS:
-000094r 1  2C 58 C0             BIT AN0OFF          ;4 CYCLES - TRANSMIT START BIT - ALWAYS LOW
-000097r 1  20 rr rr             JSR DELAY22         ;6+22
-00009Ar 1               BIT0:
-00009Ar 1  2C 58 C0             BIT AN0OFF          ;4
-00009Dr 1  20 rr rr             JSR DELAY22         ;6+22
-0000A0r 1               BIT1:
-0000A0r 1  2C 58 C0             BIT AN0OFF          ;4
-0000A3r 1  20 rr rr             JSR DELAY22         ;6+22
-0000A6r 1               BIT2:
-0000A6r 1  2C 58 C0             BIT AN0OFF          ;4
-0000A9r 1  20 rr rr             JSR DELAY22         ;6+22
-0000ACr 1               BIT3:
-0000ACr 1  2C 58 C0             BIT AN0OFF          ;4
-0000AFr 1  20 rr rr             JSR DELAY22         ;6+22
-0000B2r 1               BIT4:
-0000B2r 1  2C 58 C0             BIT AN0OFF          ;4
-0000B5r 1  20 rr rr             JSR DELAY22         ;6+22
-0000B8r 1               BIT5:
-0000B8r 1  2C 58 C0             BIT AN0OFF          ;4
-0000BBr 1  20 rr rr             JSR DELAY22         ;6+22
-0000BEr 1               BIT6:
-0000BEr 1  2C 58 C0             BIT AN0OFF          ;4
-0000C1r 1  20 rr rr             JSR DELAY22         ;6+22
-0000C4r 1               BIT7:
-0000C4r 1  2C 58 C0             BIT AN0OFF          ;4
-0000C7r 1  20 rr rr             JSR DELAY22         ;6+22
-0000CAr 1  2C 59 C0             BIT AN0ON           ;4        ;TRANSMIT STOP BIT - ALWAYS HIGH
-0000CDr 1  20 rr rr             JSR DELAY22         ;6+22
-0000D0r 1  60                   RTS
-0000D1r 1               ;-----------------------------------------------------------------------
-0000D1r 1               DELAY22:
-0000D1r 1  EA                   NOP       ;WAIT 22 CYCLES
-0000D2r 1  EA                   NOP
-0000D3r 1  EA                   NOP
-0000D4r 1  EA                   NOP
-0000D5r 1  EA                   NOP
-0000D6r 1  EA                   NOP
-0000D7r 1  EA                   NOP
-0000D8r 1  EA                   NOP
-0000D9r 1  60                   RTS
-0000DAr 1               ;-----------------------------------------------------------------------
-0000DAr 1               TESTMSG1:
-0000DAr 1  A9 07                LDA #7
-0000DCr 1  85 D7                STA NUMBYTES
-0000DEr 1  A9 rr                LDA #<TESTDAT1
-0000E0r 1  85 CE                STA DATAPTR
-0000E2r 1  A9 rr                LDA #>TESTDAT1
-0000E4r 1  85 CF                STA DATAPTR+1
-0000E6r 1  20 rr rr             JSR SENDMSG
-0000E9r 1  60                   RTS
-0000EAr 1               ;-----------------------------------------------------------------------
-0000EAr 1               TESTMSG2:
-0000EAr 1  A9 07                LDA #7
-0000ECr 1  85 D7                STA NUMBYTES
-0000EEr 1  A9 rr                LDA #<TESTDAT2
-0000F0r 1  85 CE                STA DATAPTR
-0000F2r 1  A9 rr                LDA #>TESTDAT2
-0000F4r 1  85 CF                STA DATAPTR+1
-0000F6r 1  20 rr rr             JSR SENDMSG
-0000F9r 1  60                   RTS
-0000FAr 1               ;-----------------------------------------------------------------------
-0000FAr 1               QUIET:
-0000FAr 1  A9 90                LDA #$90
-0000FCr 1  85 D7                STA NUMBYTES
-0000FEr 1  A9 rr                LDA #<QUIETMSG
-000100r 1  85 CE                STA DATAPTR
-000102r 1  A9 rr                LDA #>QUIETMSG
-000104r 1  85 CF                STA DATAPTR+1
-000106r 1  20 rr rr             JSR SENDMSG
-000109r 1  60                   RTS
-00010Ar 1               ;-----------------------------------------------------------------------
-00010Ar 1               TESTDAT1:
-00010Ar 1  90 3C 40 40      .byte $90,$3C,$40,$40,$40,$43,$40
-00010Er 1  40 43 40     
-000111r 1               TESTDAT2:
-000111r 1  90 3C 00 40      .byte $90,$3C,$00,$40,$00,$43,$00
-000115r 1  00 43 00     
-000118r 1               QUIETMSG:
-000118r 1  B0 78 00 B0      .byte $B0,$78,$00,$B0,$79,$00,$B0,$7B,$00
-00011Cr 1  79 00 B0 7B  
-000120r 1  00           
-000121r 1  B1 78 00 B1      .byte $B1,$78,$00,$B1,$79,$00,$B1,$7B,$00
-000125r 1  79 00 B1 7B  
-000129r 1  00           
-00012Ar 1  B2 78 00 B2      .byte $B2,$78,$00,$B2,$79,$00,$B2,$7B,$00
-00012Er 1  79 00 B2 7B  
-000132r 1  00           
-000133r 1  B3 78 00 B3      .byte $B3,$78,$00,$B3,$79,$00,$B3,$7B,$00
-000137r 1  79 00 B3 7B  
-00013Br 1  00           
-00013Cr 1  B4 78 00 B4      .byte $B4,$78,$00,$B4,$79,$00,$B4,$7B,$00
-000140r 1  79 00 B4 7B  
-000144r 1  00           
-000145r 1  B5 78 00 B5      .byte $B5,$78,$00,$B5,$79,$00,$B5,$7B,$00
-000149r 1  79 00 B5 7B  
-00014Dr 1  00           
-00014Er 1  B6 78 00 B6      .byte $B6,$78,$00,$B6,$79,$00,$B6,$7B,$00
-000152r 1  79 00 B6 7B  
-000156r 1  00           
-000157r 1  B7 78 00 B7      .byte $B7,$78,$00,$B7,$79,$00,$B7,$7B,$00
-00015Br 1  79 00 B7 7B  
-00015Fr 1  00           
-000160r 1  B8 78 00 B8      .byte $B8,$78,$00,$B8,$79,$00,$B8,$7B,$00
-000164r 1  79 00 B8 7B  
-000168r 1  00           
-000169r 1  B9 78 00 B9      .byte $B9,$78,$00,$B9,$79,$00,$B9,$7B,$00
-00016Dr 1  79 00 B9 7B  
-000171r 1  00           
-000172r 1  BA 78 00 BA      .byte $BA,$78,$00,$BA,$79,$00,$BA,$7B,$00
-000176r 1  79 00 BA 7B  
-00017Ar 1  00           
-00017Br 1  BB 78 00 BB      .byte $BB,$78,$00,$BB,$79,$00,$BB,$7B,$00
-00017Fr 1  79 00 BB 7B  
-000183r 1  00           
-000184r 1  BC 78 00 BC      .byte $BC,$78,$00,$BC,$79,$00,$BC,$7B,$00
-000188r 1  79 00 BC 7B  
-00018Cr 1  00           
-00018Dr 1  BD 78 00 BD      .byte $BD,$78,$00,$BD,$79,$00,$BD,$7B,$00
-000191r 1  79 00 BD 7B  
-000195r 1  00           
-000196r 1  BE 78 00 BE      .byte $BE,$78,$00,$BE,$79,$00,$BE,$7B,$00
-00019Ar 1  79 00 BE 7B  
-00019Er 1  00           
-00019Fr 1  BF 78 00 BF      .byte $BF,$78,$00,$BF,$79,$00,$BF,$7B,$00
-0001A3r 1  79 00 BF 7B  
-0001A7r 1  00           
-0001A8r 1               ;----------------
-0001A8r 1               ; END OF PROGRAM
-0001A8r 1               ;----------------
-0001A8r 1               .endproc
-0001A8r 1               
+000014r 1               CHNGANNC:
+000014r 1  4C rr rr             JMP CHGANNC         ;RECONFIGURE PROGRAM TO USE ANNUNCIATOR NUMBER IN NEXT BYTE
+000017r 1               ANNC2USE:
+000017r 1  00                   .byte $00           ;ONLY LEAST SIGNIFICANT 2 BITS ARE USED
+000018r 1               CHNGLOGC:
+000018r 1  4C rr rr             JMP CHGLOGIC        ;RECONFIGURE PROGRAM TO USE POSITIVE OR NEGATIVE LOGIC
+00001Br 1               LOGICBYT:
+00001Br 1  00                   .byte $00           ;SET HIGH BIT TO 1 TO USE NEGATIVE LOGIC, ELSE POSITIVE LOGIC (DEFAULT)
+00001Cr 1               ;---------------------------------------------------------------------------
+00001Cr 1  00           SAVENBYT: .byte $00             ;SAVE AREA FOR NUMBYTES
+00001Dr 1  00           TEMPA:    .byte $00
+00001Er 1  00           TEMPX:    .byte $00
+00001Fr 1               ;ANNPAIR:  .byte  $00            ; ANNUNCIATOR NUMBER TIMES 2 (1=C05A, 2=C05C, 3=C05E)
+00001Fr 1               ;---------------------------------------------------------------------------
+00001Fr 1               INIT:
+00001Fr 1  2C 59 C0             BIT AN0ON
+000022r 1  60                   RTS
+000023r 1               ;---------------------------------------------------------------------------
+000023r 1               XMITMSG:
+000023r 1  A5 D7                LDA NUMBYTES        ;SAVE NUMBER OF BYTES
+000025r 1  8D rr rr             STA SAVENBYT        ;BECAUSE WE WILL CLOBBER IT
+000028r 1  A0 00                LDY #$00            ;Y WILL BE AN INDEX INTO THE DATA AREA
+00002Ar 1               XMITLOOP:
+00002Ar 1  B1 CE                LDA (DATAPTR),Y     ;GET A DATA BYTE
+00002Cr 1  20 rr rr             JSR XMITONE
+00002Fr 1  C8                   INY                 ;POINT TO NEXT BYTE
+000030r 1  C6 D7                DEC NUMBYTES        ;DECREMENT COUNTER
+000032r 1  A5 D7                LDA NUMBYTES        ;CHECK IF ZERO
+000034r 1  D0 F4                BNE XMITLOOP        ;LOOP UNTIL DONE SENDING ALL BYTES
+000036r 1  AD rr rr             LDA SAVENBYT
+000039r 1  85 D7                STA NUMBYTES        ;RESTORE ORIGINAL VALUE OF NUMBYTES
+00003Br 1  60                   RTS
+00003Cr 1               ;---------------------------------------------------------------------------
+00003Cr 1               XMITONE:
+00003Cr 1  8D rr rr             STA TEMPA           ;SAVE A AND X REGISTERS
+00003Fr 1  8E rr rr             STX TEMPX
+000042r 1               ;
+000042r 1  0A                   ASL A               ;SHIFT BIT INTO CARRY
+000043r 1  AA                   TAX                 ;SAVE CURRENT IMAGE OF DATA BYTE
+000044r 1  A9 00                LDA #$00            ;ZERO OUT ACCUMULATOR FOR ADD
+000046r 1  69 58                ADC #<AN0OFF        ;ADD CARRY TO ANNUNCIATOR ADDRESS
+000048r 1  8D rr rr             STA BIT7+1          ;MODIFY THE XMITBITS SUBROUTINE
+00004Br 1  8A                   TXA                 ;RESTORE ACCUMULATOR
+00004Cr 1               ;
+00004Cr 1  0A                   ASL A               ;SHIFT BIT INTO CARRY
+00004Dr 1  AA                   TAX                 ;SAVE CURRENT IMAGE OF DATA BYTE
+00004Er 1  A9 00                LDA #$00            ;ZERO OUT ACCUMULATOR FOR ADD
+000050r 1  69 58                ADC #<AN0OFF        ;ADD CARRY TO ANNUNCIATOR ADDRESS
+000052r 1  8D rr rr             STA BIT6+1          ;MODIFY THE XMITBITS SUBROUTINE
+000055r 1  8A                   TXA                 ;RESTORE ACCUMULATOR
+000056r 1               ;
+000056r 1  0A                   ASL A               ;SHIFT BIT INTO CARRY
+000057r 1  AA                   TAX                 ;SAVE CURRENT IMAGE OF DATA BYTE
+000058r 1  A9 00                LDA #$00            ;ZERO OUT ACCUMULATOR FOR ADD
+00005Ar 1  69 58                ADC #<AN0OFF        ;ADD CARRY TO ANNUNCIATOR ADDRESS
+00005Cr 1  8D rr rr             STA BIT5+1          ;MODIFY THE XMITBITS SUBROUTINE
+00005Fr 1  8A                   TXA                 ;RESTORE ACCUMULATOR
+000060r 1               ;
+000060r 1  0A                   ASL A               ;SHIFT BIT INTO CARRY
+000061r 1  AA                   TAX                 ;SAVE CURRENT IMAGE OF DATA BYTE
+000062r 1  A9 00                LDA #$00            ;ZERO OUT ACCUMULATOR FOR ADD
+000064r 1  69 58                ADC #<AN0OFF        ;ADD CARRY TO ANNUNCIATOR ADDRESS
+000066r 1  8D rr rr             STA BIT4+1          ;MODIFY THE XMITBITS SUBROUTINE
+000069r 1  8A                   TXA                 ;RESTORE ACCUMULATOR
+00006Ar 1               ;
+00006Ar 1  0A                   ASL A               ;SHIFT BIT INTO CARRY
+00006Br 1  AA                   TAX                 ;SAVE CURRENT IMAGE OF DATA BYTE
+00006Cr 1  A9 00                LDA #$00            ;ZERO OUT ACCUMULATOR FOR ADD
+00006Er 1  69 58                ADC #<AN0OFF        ;ADD CARRY TO ANNUNCIATOR ADDRESS
+000070r 1  8D rr rr             STA BIT3+1          ;MODIFY THE XMITBITS SUBROUTINE
+000073r 1  8A                   TXA                 ;RESTORE ACCUMULATOR
+000074r 1               ;
+000074r 1  0A                   ASL A               ;SHIFT BIT INTO CARRY
+000075r 1  AA                   TAX                 ;SAVE CURRENT IMAGE OF DATA BYTE
+000076r 1  A9 00                LDA #$00            ;ZERO OUT ACCUMULATOR FOR ADD
+000078r 1  69 58                ADC #<AN0OFF        ;ADD CARRY TO ANNUNCIATOR ADDRESS
+00007Ar 1  8D rr rr             STA BIT2+1          ;MODIFY THE XMITBITS SUBROUTINE
+00007Dr 1  8A                   TXA                 ;RESTORE ACCUMULATOR
+00007Er 1               ;
+00007Er 1  0A                   ASL A               ;SHIFT BIT INTO CARRY
+00007Fr 1  AA                   TAX                 ;SAVE CURRENT IMAGE OF DATA BYTE
+000080r 1  A9 00                LDA #$00            ;ZERO OUT ACCUMULATOR FOR ADD
+000082r 1  69 58                ADC #<AN0OFF        ;ADD CARRY TO ANNUNCIATOR ADDRESS
+000084r 1  8D rr rr             STA BIT1+1          ;MODIFY THE XMITBITS SUBROUTINE
+000087r 1  8A                   TXA                 ;RESTORE ACCUMULATOR
+000088r 1               ;
+000088r 1  0A                   ASL A               ;SHIFT BIT INTO CARRY
+000089r 1  AA                   TAX                 ;SAVE CURRENT IMAGE OF DATA BYTE
+00008Ar 1  A9 00                LDA #$00             ;ZERO OUT ACCUMULATOR FOR ADD
+00008Cr 1  69 58                ADC #<AN0OFF        ;ADD CARRY TO ANNUNCIATOR ADDRESS
+00008Er 1  8D rr rr             STA BIT0+1          ;MODIFY THE XMITBITS SUBROUTINE
+000091r 1  8A                   TXA                 ;RESTORE ACCUMULATOR
+000092r 1               ;
+000092r 1  20 rr rr             JSR XMITBITS        ;SEND THE BYTE OUT
+000095r 1  AE rr rr             LDX TEMPX
+000098r 1  AD rr rr             LDA TEMPA           ;RESTORE X AND A
+00009Br 1  60                   RTS
+00009Cr 1               ;-----------------------------------------------------------------------
+00009Cr 1               XMITBITS:
+00009Cr 1  08                   PHP                 ;SAVE CURRENT INTERRUPT STATUS
+00009Dr 1  78                   SEI                 ;MASK INTERRUPTS DURING CRITICAL TIMING SECTION
+00009Er 1  2C 58 C0             BIT AN0OFF          ;4 CYCLES - TRANSMIT START BIT - ALWAYS LOW
+0000A1r 1  20 rr rr             JSR DELAY22         ;6+22
+0000A4r 1               BIT0:
+0000A4r 1  2C 58 C0             BIT AN0OFF          ;4
+0000A7r 1  20 rr rr             JSR DELAY22         ;6+22
+0000AAr 1               BIT1:
+0000AAr 1  2C 58 C0             BIT AN0OFF          ;4
+0000ADr 1  20 rr rr             JSR DELAY22         ;6+22
+0000B0r 1               BIT2:
+0000B0r 1  2C 58 C0             BIT AN0OFF          ;4
+0000B3r 1  20 rr rr             JSR DELAY22         ;6+22
+0000B6r 1               BIT3:
+0000B6r 1  2C 58 C0             BIT AN0OFF          ;4
+0000B9r 1  20 rr rr             JSR DELAY22         ;6+22
+0000BCr 1               BIT4:
+0000BCr 1  2C 58 C0             BIT AN0OFF          ;4
+0000BFr 1  20 rr rr             JSR DELAY22         ;6+22
+0000C2r 1               BIT5:
+0000C2r 1  2C 58 C0             BIT AN0OFF          ;4
+0000C5r 1  20 rr rr             JSR DELAY22         ;6+22
+0000C8r 1               BIT6:
+0000C8r 1  2C 58 C0             BIT AN0OFF          ;4
+0000CBr 1  20 rr rr             JSR DELAY22         ;6+22
+0000CEr 1               BIT7:
+0000CEr 1  2C 58 C0             BIT AN0OFF          ;4
+0000D1r 1  20 rr rr             JSR DELAY22         ;6+22
+0000D4r 1  2C 59 C0             BIT AN0ON           ;4        ;TRANSMIT STOP BIT - ALWAYS HIGH
+0000D7r 1  20 rr rr             JSR DELAY22         ;6+22
+0000DAr 1  28                   PLP                 ;RESTORE SAVED INTERRUPT STATUS
+0000DBr 1  60                   RTS
+0000DCr 1               ;-----------------------------------------------------------------------
+0000DCr 1               DELAY22:
+0000DCr 1  EA                   NOP       ;WAIT 22 CYCLES
+0000DDr 1  EA                   NOP
+0000DEr 1  EA                   NOP
+0000DFr 1  EA                   NOP
+0000E0r 1  EA                   NOP
+0000E1r 1  EA                   NOP
+0000E2r 1  EA                   NOP
+0000E3r 1  EA                   NOP
+0000E4r 1  60                   RTS
+0000E5r 1               ;-----------------------------------------------------------------------
+0000E5r 1               TESTMSG1:
+0000E5r 1  A9 07                LDA #7
+0000E7r 1  85 D7                STA NUMBYTES
+0000E9r 1  A9 rr                LDA #<TESTDAT1
+0000EBr 1  85 CE                STA DATAPTR
+0000EDr 1  A9 rr                LDA #>TESTDAT1
+0000EFr 1  85 CF                STA DATAPTR+1
+0000F1r 1  20 rr rr             JSR SENDMSG
+0000F4r 1  60                   RTS
+0000F5r 1               ;-----------------------------------------------------------------------
+0000F5r 1               TESTMSG2:
+0000F5r 1  A9 07                LDA #7
+0000F7r 1  85 D7                STA NUMBYTES
+0000F9r 1  A9 rr                LDA #<TESTDAT2
+0000FBr 1  85 CE                STA DATAPTR
+0000FDr 1  A9 rr                LDA #>TESTDAT2
+0000FFr 1  85 CF                STA DATAPTR+1
+000101r 1  20 rr rr             JSR SENDMSG
+000104r 1  60                   RTS
+000105r 1               ;-----------------------------------------------------------------------
+000105r 1               QUIET:
+000105r 1  A9 90                LDA #$90
+000107r 1  85 D7                STA NUMBYTES
+000109r 1  A9 rr                LDA #<QUIETMSG
+00010Br 1  85 CE                STA DATAPTR
+00010Dr 1  A9 rr                LDA #>QUIETMSG
+00010Fr 1  85 CF                STA DATAPTR+1
+000111r 1  20 rr rr             JSR SENDMSG
+000114r 1  60                   RTS
+000115r 1               ;-----------------------------------------------------------------------
+000115r 1               CHGANNC:
+000115r 1  60                   RTS
+000116r 1               ;-----------------------------------------------------------------------
+000116r 1               CHGLOGIC:
+000116r 1  60                   RTS
+000117r 1               ;-----------------------------------------------------------------------
+000117r 1               TESTDAT1:
+000117r 1  90 3C 40 40      .byte $90,$3C,$40,$40,$40,$43,$40
+00011Br 1  40 43 40     
+00011Er 1               TESTDAT2:
+00011Er 1  90 3C 00 40      .byte $90,$3C,$00,$40,$00,$43,$00
+000122r 1  00 43 00     
+000125r 1               QUIETMSG:
+000125r 1  B0 78 00 B0      .byte $B0,$78,$00,$B0,$79,$00,$B0,$7B,$00
+000129r 1  79 00 B0 7B  
+00012Dr 1  00           
+00012Er 1  B1 78 00 B1      .byte $B1,$78,$00,$B1,$79,$00,$B1,$7B,$00
+000132r 1  79 00 B1 7B  
+000136r 1  00           
+000137r 1  B2 78 00 B2      .byte $B2,$78,$00,$B2,$79,$00,$B2,$7B,$00
+00013Br 1  79 00 B2 7B  
+00013Fr 1  00           
+000140r 1  B3 78 00 B3      .byte $B3,$78,$00,$B3,$79,$00,$B3,$7B,$00
+000144r 1  79 00 B3 7B  
+000148r 1  00           
+000149r 1  B4 78 00 B4      .byte $B4,$78,$00,$B4,$79,$00,$B4,$7B,$00
+00014Dr 1  79 00 B4 7B  
+000151r 1  00           
+000152r 1  B5 78 00 B5      .byte $B5,$78,$00,$B5,$79,$00,$B5,$7B,$00
+000156r 1  79 00 B5 7B  
+00015Ar 1  00           
+00015Br 1  B6 78 00 B6      .byte $B6,$78,$00,$B6,$79,$00,$B6,$7B,$00
+00015Fr 1  79 00 B6 7B  
+000163r 1  00           
+000164r 1  B7 78 00 B7      .byte $B7,$78,$00,$B7,$79,$00,$B7,$7B,$00
+000168r 1  79 00 B7 7B  
+00016Cr 1  00           
+00016Dr 1  B8 78 00 B8      .byte $B8,$78,$00,$B8,$79,$00,$B8,$7B,$00
+000171r 1  79 00 B8 7B  
+000175r 1  00           
+000176r 1  B9 78 00 B9      .byte $B9,$78,$00,$B9,$79,$00,$B9,$7B,$00
+00017Ar 1  79 00 B9 7B  
+00017Er 1  00           
+00017Fr 1  BA 78 00 BA      .byte $BA,$78,$00,$BA,$79,$00,$BA,$7B,$00
+000183r 1  79 00 BA 7B  
+000187r 1  00           
+000188r 1  BB 78 00 BB      .byte $BB,$78,$00,$BB,$79,$00,$BB,$7B,$00
+00018Cr 1  79 00 BB 7B  
+000190r 1  00           
+000191r 1  BC 78 00 BC      .byte $BC,$78,$00,$BC,$79,$00,$BC,$7B,$00
+000195r 1  79 00 BC 7B  
+000199r 1  00           
+00019Ar 1  BD 78 00 BD      .byte $BD,$78,$00,$BD,$79,$00,$BD,$7B,$00
+00019Er 1  79 00 BD 7B  
+0001A2r 1  00           
+0001A3r 1  BE 78 00 BE      .byte $BE,$78,$00,$BE,$79,$00,$BE,$7B,$00
+0001A7r 1  79 00 BE 7B  
+0001ABr 1  00           
+0001ACr 1  BF 78 00 BF      .byte $BF,$78,$00,$BF,$79,$00,$BF,$7B,$00
+0001B0r 1  79 00 BF 7B  
+0001B4r 1  00           
+0001B5r 1               ;----------------
+0001B5r 1               ; END OF PROGRAM
+0001B5r 1               ;----------------
+0001B5r 1               .endproc
+0001B5r 1               
diff --git a/SRC/A2NoSlotMidi/main.o b/SRC/A2NoSlotMidi/main.o
index 49c2df3..7070e33 100644
Binary files a/SRC/A2NoSlotMidi/main.o and b/SRC/A2NoSlotMidi/main.o differ
diff --git a/SRC/A2NoSlotMidi/main.s b/SRC/A2NoSlotMidi/main.s
index 71ef431..93003b4 100644
--- a/SRC/A2NoSlotMidi/main.s
+++ b/SRC/A2NoSlotMidi/main.s
@@ -12,6 +12,8 @@
 ; THROUGH THE APPLE ANNUNCIATOR 0 OUTPUT PORT OF THE GAME CONNECTOR
 ; USING 32 CYCLES PER BIT TO ACHIEVE A 31.25K MIDI BAUD RATE.
 ;
+; //GS USERS NEED TO RUN THIS PROGRAM IN NORMAL SPEED MODE
+;
 ; THE OUTPUT IS INITIALIZED TO A HIGH LOGIC VOLTAGE.  WHEN IT GOES
 ; LOW FOR 32 MICROSECONDS, THAT INDICATES THE START BIT OF A MIDI BYTE.
 ; THEN 8 BYTES OF DATA ARE TRANSMITTED, FOLLOWED BY A HIGH STOP BIT.
@@ -28,11 +30,13 @@
 ;         TRANSMITTED, AND A POINTER IN $CE,CF (LO,HI) WITH THE ADDRESS OF
 ;         THE DATA BYTES, THEN CALLS THE ENTRY POINT "SENDMSG" TO TRANSMIT
 ;         THE MESSAGE.
-; $900B = SEND A TEST MESSAGE - C MAJOR CHORD NOTE ONS
-; $900E = SEND A TEST MESSAGE - C MAJOR CHORD NOTE OFFS
-; $9011 = RESERVED
-; $9014 = RESERVED
-; $9017 = RESERVED
+; $900B = TURN ALL NOTES OFF
+; $900E = SEND A TEST MESSAGE - C MAJOR CHORD NOTE ONS
+; $9011 = SEND A TEST MESSAGE - C MAJOR CHORD NOTE OFFS
+; $9014 = CHANGE ANNUNCIATOR - MODIFIES CODE TO USE DIFFERENT ANNUNCIATOR
+; $9017 = ANNUNCIATOR TO USE: 0-3 - only looks at least significant 2 bits
+; $9018 = CHANGE LOGIC - BIT 7
+; $901B = SET BIT 7 TO USE NEGATIVE LOGIC
 ;-------------------------------------------------------------------------
 ; Enhancements for 2018:
 ; 1. Disable interrupts during critical timing sections, preserve interrupt status
@@ -70,12 +74,14 @@ TEST1:
 TEST2:
         JMP TESTMSG2        ;SEND TEST MESSAGE 2 - C MAJOR CHORD OFF
         ;
-        ;RSRVD1:
-        ;JMP INIT
-        ;RSRVD2:
-        ;JMP INIT
-        ;RSRVD3:
-        ;JMP INIT
+CHNGANNC:
+        JMP CHGANNC         ;RECONFIGURE PROGRAM TO USE ANNUNCIATOR NUMBER IN NEXT BYTE
+ANNC2USE:
+        .byte $00           ;ONLY LEAST SIGNIFICANT 2 BITS ARE USED
+CHNGLOGC:
+        JMP CHGLOGIC        ;RECONFIGURE PROGRAM TO USE POSITIVE OR NEGATIVE LOGIC
+LOGICBYT:
+        .byte $00           ;SET HIGH BIT TO 1 TO USE NEGATIVE LOGIC, ELSE POSITIVE LOGIC (DEFAULT)
 ;---------------------------------------------------------------------------
 SAVENBYT: .byte $00             ;SAVE AREA FOR NUMBYTES
 TEMPA:    .byte $00
@@ -167,6 +173,8 @@ XMITONE:
         RTS
 ;-----------------------------------------------------------------------
 XMITBITS:
+        PHP                 ;SAVE CURRENT INTERRUPT STATUS
+        SEI                 ;MASK INTERRUPTS DURING CRITICAL TIMING SECTION
         BIT AN0OFF          ;4 CYCLES - TRANSMIT START BIT - ALWAYS LOW
         JSR DELAY22         ;6+22
 BIT0:
@@ -195,6 +203,7 @@ BIT7:
         JSR DELAY22         ;6+22
         BIT AN0ON           ;4        ;TRANSMIT STOP BIT - ALWAYS HIGH
         JSR DELAY22         ;6+22
+        PLP                 ;RESTORE SAVED INTERRUPT STATUS
         RTS
 ;-----------------------------------------------------------------------
 DELAY22:
@@ -238,6 +247,12 @@ QUIET:
         JSR SENDMSG
         RTS
 ;-----------------------------------------------------------------------
+CHGANNC:
+        RTS
+;-----------------------------------------------------------------------
+CHGLOGIC:
+        RTS
+;-----------------------------------------------------------------------
 TESTDAT1:
     .byte $90,$3C,$40,$40,$40,$43,$40
 TESTDAT2:
diff --git a/SRC/A2NoSlotMidi/make/V2Make.scpt b/SRC/A2NoSlotMidi/make/V2Make.scpt
index dd0f68f..ce3929e 100644
Binary files a/SRC/A2NoSlotMidi/make/V2Make.scpt and b/SRC/A2NoSlotMidi/make/V2Make.scpt differ