Want to create drumloops?
Beatlab (www.beatlab.com) lets you create loops in a friendly and easy-to-use way online in a variety of genres. There are around 12 sound sets to choose from (including a piano). Once you’ve created the sound you want, you can save it to use in your own composition, or share it with friends.
If you’re stuck for inspiration, or want to create allegoric music, you can roll the dice and get a random loop.