I am working on a project that is a self playing guitar and I am dealing with the self fretting part. It consists of $7$ servo motors connected to a slave and master Arduino with the self picking part connect to another slave, connected the master Arduino consisting of $6$ servo motors. If the notes I can play are E$2,$ A$2,$ D$3,$ G$3,$ B$3,$ E$4,$ B$2,$ C$3,$ E$3,$ F$3,$ G#$3,$A$3$ and C$4$ how can I come up with a code that can play a reproduceable sound. Possibly Jingle Bells or any simple piece of music? There needs to be synchronization with the two slaves.