Not bad, but...

The music isn't bad, but I think this might be better suited for the audio portal, unless you were to animate some kind of flash video along with your playing.

Alright.

Accurate information, and a decent attempt at incorporating a game element to it, but you should watch your spelling of 'bass clef', and perhaps incorporate more games into the lesson; perhaps a 'what is this?' timed quiz... or go the other route and add in other simple ideas such as key signature or major chords.