Have a look at MNX, which is in the process of being designed: https://w3c.github.io/mnx/docs/ https://w3c.github.io/mnx/docs/ It's an open JSON format that's

Have a look at MNX, which is in the process of being designed: https://w3c.github.io/mnx/docs/ https://w3c.github.io/mnx/docs/ It's an open JSON format that's being hashed out by members of the music technology community. It's not production-ready yet, but I encourage you to get involved in the discussions! https://github.com/w3c/mnx/ https://github.com/w3c/mnx/ (I lead creation of the format, as one of the co-chairs of the W3C Music Notation Community Group.)