Oir is the first generative music game for iOS. Easy to learn, hard to master: just repeat the melody to unlock new levels. Features: Music driven gameplay. Powerups. Unlockable instruments: Piano, Electric guitar, Harp, Synth, Trumpet, Rhodes and much more. Different gameplay modes. Adaptable BPM. From zero to professional, a music game that everybody can enjoy. Start learning music and feel the beat!