@d-healey Haven't yet tried another host, been stubbornly trying to get this to work with GarageBand: Kids with access to (school) iPads might be an audience for this experiment, so it would be great to have this working in a freely available AUv3 host like that. It's inspiring to know they sometimes get to play with GB Live Loops in music class (in my neighbourhood), so I thought: "Why not some (free) AUv3 plugins, too?" - but I'll try in a host like AUM and report back.