YouTuber Steven Speciale is a music instructor at Loyola High School, where his Freshman had an iPad laden music festival. The students use a combination of Figure, TriqTraq, and others apps, with a Critter & Guitari Video Scope for the light show. I've embedded the playlist here.
Steven Speciale, instructor
Loyola High School Freshmen
Collaborative pieces on four iPads using, Figure, Triq Traq, and Abelton Link. Routing the sound through a Critter & Guitari analog video synth provides the light show.