Drum Lab is a fun little Flash tool that can actually be used to mix decent tracks!
The Drum Loop option can be used to create loops. Just drag an instrument onto one of the empty squares to start making your drum loop. Click on the plus sign to create another loop.
Select the sequencer tab to add loops to your track. If your track is long enough, you can save it for other users to listen to.
Name:
Drum LabDeveloper: Paper Islands
Category: Application
Type: Flash
Size: 1MB