Did you try the music commands instead of sound commands? That might remove the glitch.
Looping music without glitches
Blitz3D Forums/Blitz3D Programming/Looping music without glitchesThe forum is locked. These are the original blitzbasic.com forums, kept so they can still be read. No new topics, replies or edits can be made here. To join in, head over to the Blitz3D+ forums.