This is an isomorphic keyboard for Windows based devices with touchscreen. I made it for my Microsoft Surface Book but it should work with any Windows based touchscreen device.
I didn’t knew for a long time that Ctrlr has multitouch capability. It is not pressure or velocity sensitive but you can touch lots of keys at once and responsivity is pretty fast.
An isomorphic keyboard is interesting for chords play. Playing chords is always the same when you transpose or when you change root note.
There is no Mac version as I don’t know of any Mac with touchscreen. If you would like to try it anyway, or if you would like a Linux x86/x64 version, let me know: roet32(at)gmail.com.