Too Many Issues
For one, a lot of the time your note placement is off-beat. For example, Woman, with the 3 yellow chords in a row, aren't on beat. You also need to have more notes so we actually can have some idea of how the song should be played, it's more like playing GH4 on easy than playing a good Flash game. Plus, I don't think the backspace key was a wise choice for the strum. The noise when you strum out of time is very agitating, too. Another issue is, you can't tell when the note is coming, don't try 3D if you aren't doing it right. Basically, they come out too quickly for so little notes, and such in-accurate notes. This has to be fixed. I suggest either making the note line longer and making them fade in much earlier, or, making it non-3D and just straight down from the top so we can tell when a new note will be coming.
I generally disliked this game.