YouTuber maasijam produced some beautiful ambient music with 2 iPads running Fugue Machine and Animoog. The two iPads are synced via Ableton Link, and he's controlling them from MIDI controllers.
Atmospheric ambient ipad session with two ipads and animoogs sequenced by fugue machine. Synced via Ableton Link. Live recording in one take.
DIY Arduino Midicontroller
Akai LPD 8
iPad Air / iPad 2018
Sony a6300 / Samyang 12mm 2