That's a good question Don. Actaully I was talking to someone about that yesterday. It would be neat if this was possible. Wouldn't you actually have to find a way to convert them to Yamaha's format though? There's no style conversion with the PSR's, so I imagine you'd have to find some way to convert them...

Squeak
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GEAR: Yamaha MOXF-6, Casio MZX-500, Roland Juno-Di, M-Audio Venom, Roland RS-70, Yamaha PSR S700, M-Audio Axiom Pro-61 (Midi Controller). SOFTWARE: Mixcraft-7, PowerTracks Pro Audio 2013, Beat Thang Virtual, Dimension Le.