Awwwwwwwwwwwwwwwwwwwwwwwww dayum. I am an absolute sucker for those marching band drumlines...and that's all that this is! Awesome! :D
Could you make a longer, more intricate version, though? Maybe get some snares and stuff in there (cymbals, even?)? I feel like this has the potential to be a really epic drumline, rather than just a super cool percussion piece. Best of luck, do whatever feels right and keep making awesome sounds