the harmoniser looks the same as before. The 7000 acts as an analogue to digital converter, thus any input on mic or line appears as cd quality wave file at the usb, and can be mixed with panel/sequencer/SD card mp3 voices etc. If you have an external mixer connected to line in I suppose several instruments could be converted to digital together. Since the start of audio can be synchronised to the sequencer, I suppose you could use the sequencer as a click track to multitrack audio into a pc. The big advantage of usb digital audio is completely avoiding analogue audio in the pc and the cheap soundcard a/d converters in most pcs, you need a pretty expensive soundcard to get the 7000 usb quality when making a cd for instance.