Introduction - If you have any usage issues, please Google them yourself
A simple electronic organ based on 16 keys of 51 Singlechip
The electronic keyboard has 16 buttons, corresponding to "bass 3", "bass 4",... "Bass 7", "1", "2",... "7", "soprano 1", "soprano 2",... "Soprano 4", respectively corresponding to the key K1 to K16.