I finished the core of this a couple of hours later.
Iannix is really nice, but I want to keep close to Max for everything I'm doing (like a bald obsessed guy with glasses I am)
I used seq~
I have a small system handling the creation of elements.
This acts on the visual part, creating a matrix of positions for jit.gl.multiple and on the sound part by creating event at specific time in the seq~
The master clock is a phasor~ making the line moves and at the same time driving seq~