allright.
I read your comment and yes, this is a low level flash :p
however, i can see you tried, so I'll try for a good review ^.^
tweens are handy, but don't solely base your animations on them.
evens if you just made the fret hand a symbol to make his fingers wiggle it would have been a massive improvement.
also, backgrounds aren't manditory, but I think they would have helped cover up the plain look of this video a bit.
the drawing was ok for a beginner.
a tip, you usually want no more then 3-5 seconds between scene changes, or camera movement or else people's minds start to wander.
sound was good. (but then again, I don't think it was your own :P.. but I see you've got permission from the artist, so that's a good thing XD
and yeah, keep working on it, try making longer animations and work on having more frame by frame animations, all tween animations allways look cheep.
(all in all, an ok effort, but unfourtunatly not passable)
Cheers ^.^
Nick_B.