This upcycled, portable, cable-less digital artefact combines touchless gesture-based recognition (Skywriter sensor）with a Raspberry pi 3a+ and integrated bluetooth loudspeaker.

TASK: Play with speed (time), position (space) and quality (suspense) of your hand movements. 

INSTRUCTION OF USE: You interact with the device by moving Your hand in front of the Skywriter sensor (above the sound hole of the instrument). Play the string to observe how the string vibration deforms the field measured by Skywriter.