I would like to see some of the early drum machine sounds like the Meastro used in THE MINOTAUR or some of those old Hammond and Lowrey systems, and some of the later, 70's synth drum sounds. IIRC, the Spark could play samples, so it should be possible to sample some of the old machines and creat synth-drum sounds and make your own kits. Those old-time electronic drum machines were often used in futuristic pieces. SYNARE was one of those drum synth 4 pad devices. If you took the tie, it could make some very realistic kicks and snares along with some bug nutty batshit crazy stuff. I got my mudhooks on one of those for an afternoon