April 21 -  April 27: Listening/Instrumental Assignment (remember that listening assignments apply to the weeks during which the listening is assigned.)

Timpani

http://www.dsokids.com/listen/by-instrument/timpani.aspx

Listening: 

Listen to the links on the page above (dsokids).

Question: How long has the timpani been in orchestras in music history? How many timpani are found in a normal orchestra?