Have you ever clicked on the graphic on Google's search page? There have been some great animations, and interactive Google Doodles exploring music in different styles. They're fun, and you can even use them in music lessons if you really want to!
Here's a few of them:
Birth of Hip Hop - control virtual turntables and find out where hip hop came from.
Celebrating Mbira - learn about African music and play along on your virtual Mbira.
Beethoven's 245th birthday - move the notation around to recreate some of his classics. (Or make your own versions)!
Clara Rockmore's 105th birthday - Three lessons in how to use a theremin from a virtuoso theremin soloist - who toured with orchestras like the New York Philharmonic in the 1930s.
Cristofori's 360th birthday - explore inside a piano and play around with it's inventor Cristofori.
Bob Moog's 78th birthday - create synth sounds from this legendary synth-maker, and record them on a 4-track recorder!
There are also some lovely animations Google made to go along with music, and you can find out more about the composers.
