DanL

Thanks Choppin. I'm happy to report success on creating a mixer setup in the PX-5S that I can then drive from the MPK. File is attached for others who might want to use it. Essentially this sets up mixer channels 5 through 16 with 12 different voices (sax, flute, vibes, synth, ...). The MPK is has 12 corresponding presets to drive these (plus 4 additional presets to access channels 1 through 4). This will allow me stage use of the MPK and PX-5S together without requiring a separate sound generator for the MPK. As for my questions in the last post, it doesn't look possible to do what I want. My goal was to see if I could pull off a drawbar organ using the MPK sliders. To do this either I'd need to drive more than one mixer channel at a time via the MPK (i.e. press a key and play mixer channels 5A, 6A, 7A, 8A, ... at once) and control the relative volumes with the sliders. Alternatively I could set up the organ using hex layers and control those using the MPK sliders. But both approaches require more than I think the MPK can handle (at least given what I know so far!). Thanks again for the assistance! Dan SetUp12Channels.mid

Hi Choppin, Thanks you. I'm not super familiar with the MPK, but I've worked through the manual a few times and figured out much of the setup. Most of the setup makes sense once you get your head wrapped around the process. But I haven't found any way to assign the keyboard (or any control for that matter) to more than one channel. And each mixer channel in the PX5-5S is essentially it's own channel (1A, 2A, 3A, ... 16A). My hope is to either have the MPK send a keyboard signal on multiple channels, or have the Casio take an incoming MIDI message on a single channel and resend it or multiplex it in some way to a bunch of channels. There is one other Casio question you might know the answer to. Some of the things one can control have standard MIDI assignments, for example Volume=07 and Reverb=91. But what codes would an external MIDI source (like the MPK) need to send for non-standard things like Layer 1 Vol? I'm thinking this requires understanding Part IV in the Midi Implementation Manual and then finding the actual parameters in Part V (like 25.1). This is one of those situations where an example might be worth 1000 words. Best regards! Dan

Choppin, thank you so much for the fast and useful reply. Both approaches work like a charm. I guess my only remaining challenge (which may not be possible) is this: is there any way to drive more than one of the mixer channels at the same time using the MPK keyboard? Ideally I'm hoping to be able to mix multiple voices using the sliders to adjust individual volumes. Again, thanks for the help!

Greetings. I'm wondering if anyone on this thread can help me with a similar problem. I'm trying to use my Akai MPK61 to drive whatever instruments are set in my Casio PX-5S on mixer channels 5 through 16. I'm using the CASIO Data Editor to set the mixer channel voices. This all works fine except of course when you power off the PX-5S and then it forgets the mixer settings. It would be OK to have a MIDI file as discussed above to reestablish the mixer settings. I've successfully used turn_off_c16_mixer.mid to turn C16 off, and modified it so that I can turn a channel on or off and change the pitch. But I can't for the life of me figure out the right series of midi commands to select the right bank and program to get a different preset voice. This is likely because I'm new to MIDI. Essentially I'm starting with something that works (turn_off_c16_mixer.mid) and using a trial-and-error approach, adding/changing a small number of controls to see what works. Any insight would be great! Thanks.