YouTuber Pink Sky Music dusted off his old Korg Monotribe for this jam! I haven't seen one of these in ages. Here the Monotribe is next to its much younger, hotter, sister Volca Keys. He's also using Hexaglyphics, but that app is no longer available on the AppStore.
Correction: I thought it looked like Hexaglyphics, but PinkSky commented here that it is Quantum VJ!
A six-minute sonic exploration with the KORG Volca Keys and Monotribe. The Monotribe is running through a Zoom B1on, which is a very cheap multi-effect pedal, for chorus & reverb.