New York Philharmonic Kidzone
This is the coolest! You can listen to music by famous composers, go to an instrument storage room where you can click on instruments and listen to the sounds they make while reading about them, learn to create your own instruments, compose your own music, play games and much, much more.
I nearly lost my mind playing Instrument Frenzy on this site!
www.nyphilkids.org/main.phtml?
Carnegie Hall Listening Adventures
Oh, my goodness! A fabulous animated presentation of Benjamin Britten's Young Person's Guide to the Orchestra that involves finding the instruments in the jungle.
Click on launch to register. Get your parents to help you sign up, It's free and it's safe and it's so much fun! If you have questions, click on FAQ.
You'll enjoy the other adventures on this site as well.
tinyurl.com/ezgu6
Credits: cute graphics are from graphicgarden.com