I was the lead and sole developer (GUI by Matt Centrella) for an iPad music app called csJam, released by BoulangerLabs in 2016. The aim of the app was initially targeting a clinical use. As development went on, its purpose slowly drifted away towards a fun and creative music making app targeting a wider audience.
csJam uses the Csound sound engine to synthesize and process sounds in real-time. It incorporates 3 musical sequencers (chord, melody, and percussion) and offers a set of live instruments (designed in Csound) for the users to perform with.