http://www.dsokids.com/games/default.aspx - This website has some music games on them including Beethoven's Baseball!
http://www.dsokids.com/listen/instrumentlist.aspx - Click on this website to take you a list of some of the many instruments. You can then listen to how they sound and see what they look like by clicking on the different instruments.
http://www.dsokids.com/default.aspx - This website provides all of the information of the pages above. For more activities and practice, explore the different sections provided around the web page.
http://www.classicsforkids.com/games/ - Here is another website that contains four more games, including "Be a Rockin' Rhythm Master!"
http://www.musictechteacher.com/musicquizzes.htm - This is a great website that has LOTS of music games, quizzes, and much more!
http://www.nyphilkids.org/main.phtml? - Check out this website for games plus so much more!!
http://www.makingmusicfun.net/htm/arcade.htm - There are a couple of challenging games on this website. Try to be quick enough to win!
http://www.music.iastate.edu/antiqua/instrumt.html - This website has all kinds of instruments from the Renaissance era. Check it out to see and hear these instruments.