Korg M50-61 In addition to the individual programs, a combination (or combi) allows up to 16 sound programs to be stacked, split, layered and zoned across the keyboard; or set to individual MIDI channels. Nearly 400 of these combis come preloaded offering up tasty blends and splits for live performance. All of the preloaded sounds are completely editable, and there is plenty of room on-board (640 Programs, 512 Combinations) for all the sounds that you edit, modify, or create on your own. The on-board seque Has USB and MIDI connectivity