Additionally to the references I made in the 'Prior art' section in the main project description, I recently found two other pieces of work that I would like to mention.

The first is [Mayuresh1611]’s paper piano that was presented in a recent hackaday.com blog post. The project uses Mediapipe's hand pose detection to create a piano experience on blank sheets of paper. I am not sure how well the implementation works for actual music making, but I must admit that the whole idea is very close to lalelu_drums.

The second is a TEDx talk given by Yago De Quay in 2012. He employs a kinect device to detect the pose of a human dancer and creates music and video projections from the data. While I still think the framerate of the kinect's pose estimation (30fps) is too slow for precise music making, I find that the talk contains many nice ideas of how to use the pose estimation technique to create an appealing live performance.