There are some wonderful sites for making music online you might want to check out, particularly if you have a young one who is particularly interested in music. Here are several that we enjoy:
Tone Matrix – go check this one out whether you’re interested in music much or not. It’s sort of addictive. You click on the little squares to turn them on and it plays through your creation over and over.
JamStudio.com – choose your chords, instruments and variations and then play the composition you’ve written.
AmpleDesign.co.uk – paint your music at this site with variety of instruments and visual effects.
Tony B Machine – play on this hand drawn keyboard and mixer