  With the rise in pervasive computing solutions, interactive surfaces have
gained a large popularity across multi-application domains including smart
boards for education, touch-enabled kiosks for smart retail and smart mirrors
for smart homes. Despite the increased popularity of such interactive surfaces,
existing platforms are mostly limited to custom built surfaces with attached
sensors and hardware, that are expensive and require complicated design
considerations. To address this, we design a low-cost, intuitive system called
MuTable that repurposes any flat surface (such as table tops) into a live
musical instrument. This provides a unique, close to real-time instrument
playing experience to the user to play any type of musical instrument. This is
achieved by projecting the instrument's shape on any tangible surface, sensor
calibration, user taps detection, tap position identification, and associated
sound generation. We demonstrate the performance of our working system by
reporting an accuracy of 83% for detecting softer taps, 100% accuracy for
detecting the regular taps, and a precision of 95.7% for estimating hand
location.
