Free online metronome
http://www.webmetronome.com/
http://www.webmetronome.com/
Free online string tuner
http://www.get-tuned.com/online_tuners.php
http://www.get-tuned.com/online_tuners.php
How to assemble a flute
https://www.youtube.com/watch?v=X2pJhhJ1F6I
https://www.youtube.com/watch?v=X2pJhhJ1F6I
How to assemble a trumpet
https://www.youtube.com/watch?v=7Hfu3Hsj1bU
https://www.youtube.com/watch?v=7Hfu3Hsj1bU
How to assemble a French horn
https://www.youtube.com/watch?v=1VvYhHQF1_8
https://www.youtube.com/watch?v=1VvYhHQF1_8
How to assemble a tuba
https://www.youtube.com/watch?v=roixnrrQBbc
https://www.youtube.com/watch?v=roixnrrQBbc
Treble and bass clef note naming
http://makingmusicfun.net/flash/eekshark.htm
http://makingmusicfun.net/flash/eekshark.htm
Games (I especially like the Match the Rhythm game!)
http://www.classicsforkids.com/games.asp
http://www.classicsforkids.com/games.asp
Note names, fingerings, and rhythms game
http://musicracer.com/
http://musicracer.com/
More free music games
http://musicteachersgames.com/
http://musicteachersgames.com/
The Ultimate List of Online Music Education Games
http://cornerstoneconfessions.com/2012/08/the-ultimate-list-of-online-music.html
http://cornerstoneconfessions.com/2012/08/the-ultimate-list-of-online-music.html