Heres a quick run down on the sysex message -
F0 - Opens sysex
10- Device No , should match to device
00 00 53 - Model ID#1,2,3 - VG99 is 00 00 1C
12 - DT1 Data sets, 11 is RQ1 Request data
01 00 00 00 - 4 byte Parameter address msb>lsb
00 00 - 02 28 = data values
75/55 - Checksum
F7 -closes sysex
So jus t need to nut out the range of values and what the correlate to in GR55 speak
Probably be something like 00 00- 00 7F, 01 00 -01 7F, 02 00 - 02 28 which seems about right . . . hopefully
So you need a fader, knob, or pads or whatever to pump out some of these values via scripting or midi mapping
Honestly, for patch change , doing it with bank/program change would probably be a lot easier . . .
Will try to grab the latest version of gumtowns editor and have a look, I don't have a GR . . .
Get a bit of an interface together so I can see what you want to do . . .
iMac 2.8G i7 12G 10.6.8/10.7.2, Legacy Dexter/Lemur, Liine Lemur/iPad2, KMI SoftStep, 12Step & QuNeo , B-Controls, Mackie C4 etc
MaxMSP, Live Suite, Native Instrument stuff, etc Modified Virtual Guitar System etc All Projects/Modules © CC-BY-NC-SA[*]