The VP-7 is basically the VP-770 keyboard in a module form if you ask me. Here is a nice demo of the VP-7. The only downside is there doesn't seem to be a 'full' choir effect i.e. more than three voice harmony. Other than that though, it appears to be a fairly capable unit.

All the best,
Mike

[This message has been edited by keybplayer (edited 03-23-2010).]
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Yamaha Genos, Mackie HR824 MKII Studio Monitors, Mackie 1202 VLZ Pro Mixer (made in USA), Cakewalk Sonar Platinum, Shure SM58 vocal mic.