The "Perceptual Guidance Musical Instrument" helps people better understand how to play the music. It makes creation intuitive, straightforward and fun compared to conventional musical instruments. On the front side, for enhancing players emotional expression and gameplay, the texture of touching surface is interchangeable following personal preference. To communicate through both haptics and gesture in hand-held size, and introduce the chord guidance system to the interface make the product take a considerable advantage in composition while releasing the complexity.