Hi! i present : A freeware to be accompanied by playing a midi instrument or midi software with the computer. This game application is not multi-user. It is possible to use all midi devices running under Linux, Mac and Windows. A virtual music group is waiting you! the software will be updated soon with other cool options. All versions are mono standalone from unity engine. https://studio-ae-org.itch.io/midi-companions-3d
https://studio-ae-org.itch.io/midi-companions-3d
Source: itch.io