The Reactagon

I browsed youtube to find this cool arpeggiator that works graphically. The video explains it better than I could. I get the feeling it would be really fun to play with. I like it 'cause it means, unlike other forms of creating synthy sounds, you're never quite sure what it's gonna sound like until you press "go". It's also very simple, which gives the oppurtunity to compose lazily - always a plus!