hey, Caster

To turn part 16 off, send this sysex message:
F0 41 10 42 12 40 1F 02 10 0F F7

You can find more SC/GS sysex messages at Roland Supplemental Notes: http://209.144.99.11/SUPPORT/DOCS/SUPNOTES.HTM
Info are available in HTML and Adobe Acrobat formats.

Mgomes