A looper controlled by a D-Lev Theremin via MIDI Note On messages in the lower register.

Plus the D-LEV Theremin, I used SooperLooper (https://sonosaurus.com/sooperlooper/) and a program (https://app.box.com/s/affqh5pcnfko0eghjy6ryg6s7jl47o7f) written in Puredata language (https://puredata.info/)

For more detail please look at this tutorial: https://video.dhamdomum.ynh.fr/w/f6RfHmJvR1UFGZuzeyXiak?start=0s