Fancy Quarter-Tone Piano
Press the key names written in red to play. If you have a different keyboard layout than QWERTY such as AZERTY or QWERTZ, playing may be out of sync with the keyboard.
To tune the piano, press the left and right keys to tune by whole steps and up and down keys to tune by octaves.
To sustain notes, press space and play the keys simultaneously.
To change instruments, press 1 and 2 keys.
Quarter-tone music sounds exotic and interesting, but most people do not own a fluid piano or a specially-built piano. Here is a start.
There are not enough keys on a computer keyboard to support smaller microtones such as sixth or eighth tones.