Ben. >Do we need to allow for arbitrary tuning? ( i.e. frequencies+noteIDs instead of MIDI note numbers ) Michael. >Fractional MIDI keys would work better for me... Agree. Fractional MIDI Note numbers are easy to implement and easy to understand. Both VST and AU standards support arbitrary tuning via Fractional MIDI note numbers, so we're backward compatible too. Best Regards, Jeff ---------------------------------------------------------------------- Generalized Music Plugin Interface (GMPI) public discussion list Participation in this list is contingent upon your abiding by the following rules: Please stay on topic. You are responsible for your own words. Please respect your fellow subscribers. Please do not redistribute anyone else's words without their permission. Archive: //www.freelists.org/archives/gmpi Email gmpi-request@xxxxxxxxxxxxx w/ subject "unsubscribe" to unsubscribe