Editting ACS for music

A SCRIPTS file is just a thing for convenience and for mappers (or modders) to show what the script is. Editing it by itself will do nothing.

You'd have to edit the script, then compile the script into an ACS file (with ACC), then place the compiled ACS file into the WAD for changes to have any effect.

Of course, if the mod uses custom music names, then that's probably also why you're hearing no music either. In that case, you'd want to rename the music tracks to the original names that the base IWAD expects; without that, you'd need to specify the replacements manually per-map via MAPINFO.

Mmm i did a random music acs file and it works well, but i want set some  specific music on final maps too... I will try adding the names to mapinfo and then see what is better.

Thanks!

https://zdoom.org/wiki/SetMusic