Well..
Personaly, I'm going to hate on this just because I hate Guitar Hero and the fact you based it off it gives a 0 for originality. However, you did a good job at making it like it and is probly the best Guitar Hero remake done in flash.
There is really only one thing I would suggest, and that is customizable keys. I know you did the ASDF deal to make it like a GH controller but, I wouldnt been much happier if I could've set it to arrow keys.
Good job. 8/10