Hello, most modern Doom wads make use of sound formats such as ogg, not only for music but also for sound effects. When libsndfile is compiled with the minimal useflag, it is unable to play back ogg. Thus zmusic and with it games-fps/gzdoom will be unable to play back these sounds/music, leading to much confusion. Especially for someone not aware of how gzdoom works. I would suggest that zmusic[sndfile] should enforce [-minimal] on libsndfile to avoid this problem. Thanks! (also see previous bug 740752)