diff --git a/applecorn.po b/applecorn.po
index bb52946..db8fb34 100644
Binary files a/applecorn.po and b/applecorn.po differ
diff --git a/auxmem.init.s b/auxmem.init.s
index c83f1da..18cf9c8 100644
--- a/auxmem.init.s
+++ b/auxmem.init.s
@@ -213,7 +213,7 @@ BYTE00      BEQ   BYTE00A                    ; OSBYTE 0,0 - generate error
             RTS                              ; %000x1xxx host type, 'A'pple
 BYTE00A     BRK
             DB    $F7
-HELLO       ASC   'Applecorn MOS 2022-11-05'
+HELLO       ASC   'Applecorn MOS 2022-11-06'
             DB    $00                        ; Unify MOS messages
 * TO DO: Move into RAM
 GSSPEED     DB    $00                        ; $80 if GS is fast, $00 for slow
diff --git a/freq_table b/freq_table
index 7ec4294..7a29f83 100755
--- a/freq_table
+++ b/freq_table
@@ -6,7 +6,7 @@
 # SOUND statements.
 #
 
-base=123.47 / 16.0 * 1.573
+base=123.47 / 16.0 * 1.573 * 440.0 / 739.99
 
 print("\nFREQHIGH");
 for i in range(0,256):
diff --git a/mainmem.audio.s b/mainmem.audio.s
index b8beea0..8b95c19 100644
--- a/mainmem.audio.s
+++ b/mainmem.audio.s
@@ -762,8 +762,7 @@ ENSQINIT    LDX   #3
             LDY   #10                       ; Five oscillators enabled
             JSR   ENSQWRTDOC
             LDY   #$00                      ; Amplitude for osc #4 (timer)
-            LDA   #00                       ; EMPIRICAL - durations approx correct
-*            LDA   #33+1                     ; Freq G2+1/8 tone = 99.46Hz
+            LDA   #33+1                     ; Freq G2+1/8 tone = 99.46Hz
             LDX   #$04
             JSR   ENSQNOTE                  ; Start oscillator 4
             LDX   #$A4                      ; Control register for osc #4
diff --git a/mainmem.freq.s b/mainmem.freq.s
index 461ce75..9f612bb 100644
--- a/mainmem.freq.s
+++ b/mainmem.freq.s
@@ -5,7 +5,45 @@
 * Generated by freq_table script
 *
 
+
+
 FREQHIGH
+          DB >72
+          DB >73
+          DB >74
+          DB >75
+          DB >76
+          DB >78
+          DB >79
+          DB >80
+          DB >81
+          DB >82
+          DB >83
+          DB >85
+          DB >86
+          DB >87
+          DB >88
+          DB >90
+          DB >91
+          DB >92
+          DB >94
+          DB >95
+          DB >96
+          DB >98
+          DB >99
+          DB >101
+          DB >102
+          DB >104
+          DB >105
+          DB >107
+          DB >108
+          DB >110
+          DB >111
+          DB >113
+          DB >115
+          DB >116
+          DB >118
+          DB >120
           DB >121
           DB >123
           DB >125
@@ -218,7 +256,7 @@ FREQHIGH
           DB >2483
           DB >2519
           DB >2555
-          DB >2593
+          DB >2592
           DB >2630
           DB >2668
           DB >2707
@@ -226,44 +264,44 @@ FREQHIGH
           DB >2787
           DB >2827
           DB >2868
-          DB >2910
-          DB >2952
-          DB >2995
-          DB >3039
-          DB >3083
-          DB >3128
-          DB >3173
-          DB >3220
-          DB >3266
-          DB >3314
-          DB >3362
-          DB >3411
-          DB >3461
-          DB >3511
-          DB >3562
-          DB >3614
-          DB >3666
-          DB >3720
-          DB >3774
-          DB >3829
-          DB >3884
-          DB >3941
-          DB >3998
-          DB >4056
-          DB >4115
-          DB >4175
-          DB >4236
-          DB >4298
-          DB >4360
-          DB >4423
-          DB >4488
-          DB >4553
-          DB >4619
-          DB >4687
-          DB >4755
-          DB >4824
 
 FREQLOW
+          DB <72
+          DB <73
+          DB <74
+          DB <75
+          DB <76
+          DB <78
+          DB <79
+          DB <80
+          DB <81
+          DB <82
+          DB <83
+          DB <85
+          DB <86
+          DB <87
+          DB <88
+          DB <90
+          DB <91
+          DB <92
+          DB <94
+          DB <95
+          DB <96
+          DB <98
+          DB <99
+          DB <101
+          DB <102
+          DB <104
+          DB <105
+          DB <107
+          DB <108
+          DB <110
+          DB <111
+          DB <113
+          DB <115
+          DB <116
+          DB <118
+          DB <120
           DB <121
           DB <123
           DB <125
@@ -476,7 +514,7 @@ FREQLOW
           DB <2483
           DB <2519
           DB <2555
-          DB <2593
+          DB <2592
           DB <2630
           DB <2668
           DB <2707
@@ -484,39 +522,3 @@ FREQLOW
           DB <2787
           DB <2827
           DB <2868
-          DB <2910
-          DB <2952
-          DB <2995
-          DB <3039
-          DB <3083
-          DB <3128
-          DB <3173
-          DB <3220
-          DB <3266
-          DB <3314
-          DB <3362
-          DB <3411
-          DB <3461
-          DB <3511
-          DB <3562
-          DB <3614
-          DB <3666
-          DB <3720
-          DB <3774
-          DB <3829
-          DB <3884
-          DB <3941
-          DB <3998
-          DB <4056
-          DB <4115
-          DB <4175
-          DB <4236
-          DB <4298
-          DB <4360
-          DB <4423
-          DB <4488
-          DB <4553
-          DB <4619
-          DB <4687
-          DB <4755
-          DB <4824