Interactive Electric Guitar Lesson System Based on Real Time Wrist Motion Analysis

A wireless inertial motion-sensing device worn on the player’s dominant hand has been investigated to achieve an interactive electric guitar lesson system. An efficient calculation algorithm for detecting both strumming and single-note picking activity enabled real-time visual feedback for a wide range of guitar players including beginners. The proposed lesson system can be used in various guitar lesson situations because it does not use conventional video and audio recording devices, which would require time-consuming preparation or environmental constraints. A visual feedback screen on a PC gave information on the accuracy of rhythm, sharpness, strength, and playing posture. In a guitar lesson with the proposed system, a beginner and an intermediate-level student showed clear progress, especially in picking strength and sharpness in a short time.