I’d like to see a Source that generates a piano roll from incoming MIDI. Some parameter ideas: line thickness, color variation, maybe an ADSR for opacity, assign velocity/ aftertouch/ pitchbend to the various parameters. Also a MIDI buffer that tracks played notes and can create a “folded” roll like you get in Ableton.
I made a fake one by screen recording my MIDI and processing after the fact, but the results were less than ideal. It’s here: Day09. "Head Over Heels" - YouTube
Let me know if I’ve overlooked some shader out there that accomplishes this.
Thanks and keep up the great work!