In Alpha Muse, players will create procedurally generated musical compositions along the path they fly. Developer Current Circus released this trailer of the latest build of the game to demonstrate that.
The game, currently in development for Windows PC, was shown at PAX East this weekend. In the game, the player-controlled creature will pick up other beings, which represent different musical elements added to the song they create. Players may then tweak and modify their songs by flying through "abstract audio-reactive spaces," and, when complete, can share their creations with others in the community.
The game currently is in open development, and is offering access to its community for $10. For more information, see its official site.