Turbo Laser Lynx

I agree with you that the characters and monsters are more important, but a good pixel artist could make the bg-tiles look good with the triangle system too for sure.

Ninjabba are you using the old newcc65 or the newer newcc65? The abc-notes sent to Matashen are my old notes for the older abc-music in the older newcc65. Here's my notes for abc-music in Karri's MegaPak template for the newer compiler.

New(er) Lynx abc notation for the new newcc65 compiler:

Octaves:
' one octave higher
, one octave lower

thus the range of the notes are:
"A,A,A,A, AAAA aaaa a'a'a'a'"

tones: CDEFGABcdefgab

^ sharp note
_ flat note

tone lengths (I'm not 100% sure if I remember this correctly).
1 = double length
2= x4
4= x8

z and x paus

I put the music (abc notation) in the music folder.

Channels and "play" in abcparser.c However I failed turning on the fourth channel when i made the music for "C-Gull", so that's why there's no drums in that one.

The instrument sounds can be altered in abcdriver.c
taps
backup
octave
intergrate
volume
attack
hold
decay