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I decided to go ahead and try to write my own sammichSID patch editor for the GURU Renoise tool. There's one slight problem - I have no *$%$% idea what I'm doing. I'll explain my dilemma... After some research I see that someone already created a GURU script for sammichSID. Great! It uses CC messages, but because the Sammich does NOT save CC changes to the patch buffer this does me absolutely no good. Not so great. So I see there is a Ctrlr panel for MidiboxSID/sammichSID. Great! It is buggy at absolute best. Not so great. I'm using Vista, and to put things simply, the Ctrlr panel does things at random or whenever it feels like. So here I am with a wonky knob on my Sammich due to overuse. A patch editor is absolutely necessary because I'm at a point where all I can really do is play notes and change patches. I looked, studied, read, reread and tried to generally wrap my head around the MidiboxSID sysex documentation located here: http://svnmios.midibox.org/filedetails.php?repname=svn.mios&path=%2Ftrunk%2Fapps%2Fsynthesizers%2Fmidibox_sid_v2%2Fdoc%2Fmbsidv2_sysex_implementation.txt After hours (possibly days) of trying things out, I managed to get it half working. Even that is pushing it. tl;dr - Someone please help. ---------------------------------------------------------- Here is what I know (or don't) so far... Someone please correct me if I am wrong. The manual states that the sysex format for patch editing is: F0 00 00 7E 4B <device-number> 06 <WOPT> <AH> <AL> <value_l> <value_h> F7 So let's say for example's sake I set the device number to "0" and ignore the <WOPT> for now. Let's also say that I would like to edit the volume on the lead engine. The manual says: 0x052 | [6:0] Volume (0-127, only most significant 4bits are used by SID) Now this is where I'm completely ^&*$^*# up. The manual doesn't really make clear what [6:0] means. Furthermore, the manual says: (<AH> = 0..3, <AL> = 0..7F) Patch address: (<AH> << 7) | <AL> ...in the description of the patch sysex layout. I have NO idea what this means and it's not really obvious (to a newb) where to find this information. As a workaround I loaded Ctrlr to see what it was sending in the MIDI monitor window for volume/lead engine control. [f0 00 00 7e 4b 00 06 00 00 52 0f 07 f7] ...is what it was displaying, with the two value bits (0f, 07) changing, of course. I'm still confused on how this string relates to what was posted above. So I open GURU and enter: sysex_message_template = {0xF0, 0x00, 0x00, 0x7e, 0x4b, 0x00, 0x06, 0x00, 0x00, "nn", "vv", 0xF7}, number = 52, max_value = 127, ...where nn=number and vv=value. I've tried both hex/decimal values without success. Other times where I did get it to do something, GURU would jump 100 values or so, making it useless. So I please ask for some input on this. I'm determined to write out a new patch editor, but I cannot seem to get past the learning curve of sysex.