diff --git a/megademo/music/MUSIC_NOTES b/megademo/music/MUSIC_NOTES
index 531af2df..9a220caf 100644
--- a/megademo/music/MUSIC_NOTES
+++ b/megademo/music/MUSIC_NOTES
@@ -1,3 +1,40 @@
+AYemul converted:
+
+5952 lines * 14 bytes worst case = 83k
+
+
+5952 = 31 * 192, and 14 unique patterns so 14*192 = 2688 * 14 = 37k
+
+Patterns:	31?
+		0 1 2 3 4 5 4 6 7 8 9 A 4 5 4 6 7 8 9 A 4 5 B C 7 8 9 A 9 A D
+
+R0/R1 = A Fine/Coarse
+R2/R3 = B Fine/Coarse
+R4/R5 = C Fine/Coarse
+R6 = Noise period
+R7 = Enable (noise/tone)
+R8 = A amp
+R9 = B amp
+R10 = C amp
+R11/R12 = Envelope Period
+R13 = Envelope Shape
+
+AF,AC+AAmp
+BF,BC+BAmp
+CF,CC+CAmp
+
+
+We don't use envelope here, so we can get by with
+8 bytes/frame
+2688*8=21k
+
+
+
+
+
+
+
+
 Converting MOD to PT3
 
 Effects:
diff --git a/megademo/music/mockingbird.pt3.orig b/megademo/music/mockingbird.pt3.orig
new file mode 100644
index 00000000..7cce600c
Binary files /dev/null and b/megademo/music/mockingbird.pt3.orig differ
diff --git a/megademo/music/mockingbird_4.ym b/megademo/music/mockingbird_4.ym
new file mode 100644
index 00000000..45062aa4
Binary files /dev/null and b/megademo/music/mockingbird_4.ym differ
diff --git a/megademo/music/mockingbirdo.ym b/megademo/music/mockingbirdo.ym
new file mode 100644
index 00000000..a17ae1ca
Binary files /dev/null and b/megademo/music/mockingbirdo.ym differ