This was done as part of my capstone, and is my first serious attempt at a flash game. I'm a music lover at heart, so the idea came naturally. I would love to hear your feedback, good and bad!
Artists who would be interested in having their music featured should visit:
http://www.trebl.com/
====== UPDATE: December 05, 2009 ======
Thank you all very much for your feedback, negative and positive! I have recently started working on a sequel, and I hope to have it ready by the end of the year!
Two of the biggest things I am addressing with the sequel are performance and difficulty. You can expect crisper, smoother gameplay, and songs that focus less on ambidexterity and more on melody. I've been struggling to find a balance between too easy and too hard, and I think the sweet spot is somewhere just a little bit harder than this game's "Harder" mode, but not as difficult as "Hardest" mode.
I'm also planning on introducing new game features that are unlocked as you play. And of course, TREBL2 will feature tons of awesome new music - because that's what this is really all about!