This is an ONLINE METRONOME! http://www.metronomeonline.com
The Baroque Reference: This site talks about Baroque music and instruments. http://library.thinkquest.org/25150/
The Symphony: Interesting Classical site! http://library.thinkquest.org/22673/
coda music: You can download a music writing program called "Finale Notepad" from this website. There is a free trial available, and you can purchase the program for a nominal fee. http://www.codamusic.com