As requested by someone earlier, I made a modification that plays boss music when a boss monster is active.
The music files are boss_alienboss.ogg boss_giantspider.ogg boss_jaws.ogg boss_tomblord.ogg boss_yetiking.ogg
Only spent about twenty minutes on it, so I didn't actually put together any new music for it, except I replaced the boss_jaws one. If anyone feels like finding some appropriate music, editing it together, and uploading it here, at least one person should appreciate it!
Source file is included.
-New music is loaded and given a supersound handle in oMusic's create event, music volumes are set in the scrInit script.
-oLevel's step event had a call added to the new script bossMusic() that is in the Audio script folder.
-The bossMusic script checks to see if a boss creature exists, then does audio stuff to change the music.
-stopAllMusic script had the new musics added
http://www.rawcritics.com/minecraft/files/tyr/spleunky_1_2_bossmusic.zipEdit:
With a bit more work, someone could get the music fading in and out too.