What would you want in a pocket music instrument?

cy83rd3ck started as a web app — sequencer, synth, arpeggiator, multitrack recorder, all in a browser, free, no install. Now I’m designing the hardware: iPhone-sized, Raspberry Pi CM4, 2-octave touch keys, full width of the device.

Try the app now while you wait for launch: https://happyfaceemoji.github.io/cy83rd3ck

Curious what the community thinks — what’s missing from current pocket instruments like the OP-1 or OP-Z that you wish existed?