Like some relationships,Jazz-Fusion is complicated, which may be why few bands ever attempt playing it. Category 6 goes full-on fusion, mastering difficult time signatures and scales, creating a sound powerful enough to be worthy to be named a yet-to-be-classified storm, but you know it’s coming.

The incredible, but rarely-heard music from the genius minds of Billy Cobham, Herbie Hancock, Frank Zappa, Alphonse Mouzan and others forms the basis of the Category 6 catalog, and whether you’re a casual listener or professional musician, there’s no denying that this Denver-based band expertly plays great difficult music.