This camera-style device designed by Royal College of Art graduate Arthur Carabott uses immediate audio and visual feedback to help musicians improve their posture and technique.Using the Musician's Mirror, performers select parts of their body to track, and create presets for good and bad positions. The device is adaptable for different instruments and environments. Its camera records musicians, giving immediate feedback when they fall into a predefined bad habit. This comes in the form of visuals – shown on the Musician's Mirror app – or noise.