Obius is available on the Meta Horizon Store for $59.99
Audiospace Obius is an sound and music creation instrument with virtual reality user interface. Animated, interesting and captivating soundscapes can be created with Obius.
In a nutshell, instead of playing single notes with a keyboard, complex sequences are assigned and splitted on a virtual keys. Programming these sequences is inspiring and fun experience. There are bunch of cool presets to start with, but creating your own sounds is "the thing" with Obius.
Obius supports Oculus Quest 1, 2, 3, 3S and Quest Pro.