So I used the Abstract Song of VLDC 9 and i used it in the titlescreen but all music after the titlescreen (e.g. level music, jump sfx, intro music) stopped working and is now muted. What did I do wrong there?
This song changes the master volume, left and right, to $00.
Find and delete the commands "$F6 $0C $00 $F6 $1C $00" and "$F6 $0C $7F $F6 $1C $7F".