In a message dated 10/7/2003 7:01:20 PM Eastern Daylight Time, gedeckt@xxxxxxxx writes: You cannot change their status from a PR-300, meaning that you cannot make the Principal 8' drawknob suddenly change and begin playing the Diapason 8' that is stored in the Voice Palette behind that drawknob. Actually Noel, you can. Since I only have the 577 manual handy, I will use the Pedal Posaune 16' with the Bassoon 16' voice palette as an example. Starting with all stops off, if I send a SYSEX command turning Byte 24, Bit 1 on, the Posaune will be selected. If I then send a SYSEX command turning on Byte 24 Bit 2 on the Bassoon will be selected. Please let me know if you need more details. Clay ! ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Find new MIDI music and Guides to Rodgers Organs at www.frogmusic.com To post send messages to: rodgersorgan@xxxxxxxxxxxxx To unsubscribe or change mail delivery (digest, vacation) go to www.frogmusic.com/rodgersmem.html