[Stanislaw Pusep] has gifted us with the Pianolizer project – an easy-to-use toolkit for music exploration and visualization, an audio spectrum analyzer helping you turn sounds into piano notes.

Why are there 88 keys on a piano? Why not 44, or 200? Let’s go back to the days before the piano, when composers wrote for the harpsichord, which has just 60 keys, and each key is ...