Here’s what he has to say about it:
This is another small video combining the SEABOARD RISE, from ROLI, and the Haken Continuum, each running its own sound engine (EQUATOR on a Mac for RISE, and Eagan Matrix internal sound engine for the Continuum).
It’s just one take, and directly recorded out of the mixer (no editing, so the mix is not perfect and there are a few pitch issues ….). The only addition is a reververb from Valhalla DSP run on a Tiptop Audio Z-DSP.
The VlnVlaCellBass sound of the Continuum (amazing preset from Ed Eagan) is physical modeling based. The Legato Orchestra on the RISE (probably from Rafael Szaban), from the official ROLI preset bank (with a few local tweaking from me), is sample based.
I’m not trying to replace any instrument here: just playing something I had never been able to play on a keyboard !