Som - virtual TR 909.

Flash coder André Michelle has come up with a web-based version of the Roland TR-909, the drum machine responsible for most early techno and house beats. The virtual drum machine lets you make beats the way the real thing does, so here's your chance to see if you have what it takes to be the next Frankie Knuckles. [go on, create a beat and then add some wicked acid synth lines to run it].