BJG145 » Mon May 24, 2021 5:35 pm I just read Rory Dow's excellent article on MPE in the latest issue; this kind of thing is right up my street so it's good to have a better understanding of it. In terms of controllers though... ...first, the Eigenharp. I'm not sure if anything except the Pico is available now...? Seems to be a moot point. The hardware requires a Mac or PC running dedicated software called EigenD, and it's this which can generate MPE data, though it's a bit of a nightmare to work with, TBH. The Soundplane is also pretty unobtainable; I've only ever seen it crop up occasionally on Reverb. The website says: "We made 90 units of the Soundplane Model A. Currently we are working on a Model B." It's said that for years.