Made this one with Mux. Mux is a modular VST plugin. I've built a little 6 track live sequencer, running in standalone mode with Savihost (tiny VST host)
it works like the old Yamaha PSR series, left hand to play the sequenced chords/bass/drums, right hand for the melody.
The whole track was made in one pass on a Korg Taktile connected to my laptop, midi and audio recorded and send to Magic.
I added the vocals with Cubase later.
Thanks to Jim and Michael...