Pimoroni piano hat 13 key full octave for raspberry pi a b or pi 2 pimoroni pim095 this piano hat is a mini musical companion for the raspberry pi and features a touch sensitive 13 key full chromatic octave piano keyboard plus octave up down and instrument patch change keys using python it is possible to play music control software synths as well as controlling midi enabled hardware synths br br use the piano hat to play wav samples with pygame or create piano controlled cont