Grooveboxes - all-in-one sequencers and sound generators
Ah, the groovebox. With the original single function machines like the Roland TR-808 drum machine and Roland TB-303 bassline, one typically needed a few of these classics together to make some tunes. But now, several manufacturers are creating great all-in-one machines you can use to create a complete song. They do integrate into larger setups as well, meaning you can start small with one of these and expand as you go along.