Game loops?

I have been experimenting with making loops in LMMS but when I export a loop and have it play in the BGE at the end even with it set to loop stop/end it fades out then starts again how do I fix this?

what is LMMS?
What loop do you mean?

Do you mean loop as in looping sound?

say in repeating a “song” made by the Beatbaseline editor and Piano roll editor. When I export my track it like fades off at the end. Then repeats with loop end. In Blender