19 Tone Equal Temperament Piano in Web Audio
An online interactive and playable 19 tone equal temperament keyboard.
19 Tone Equal Temperament Piano in Web Audio launched on March 30, 2016 with 68 votes, #1,047 of 4,409 launches that month and more than 90% of that year's launches. The site was still online in September 2026, 10 years on.
In plain words
The 19 Tone Equal Temperament Piano is an online keyboard instrument that divides an octave into 19 notes instead of the standard 12. Players can interact with and play the keyboard through a web browser. It is designed for musicians, music theorists, and anyone curious about alternative tuning systems. The tool demonstrates how microtonal music works by allowing users to explore pitches between the notes found on conventional pianos.
written from the facts on this page · September 2026
From the sources
An online interactive and playable 19 tone equal temperament keyboard. On a standard piano keyboard, one octave is divided into 12 notes made up from 7 white keys (A, B, C, D, E, F and G), and in between some of these, 5 black keys, which can be called either sharps or flats: A# (Bb), C# (Db), D# (Eb), F# (Gb), G# (Ab). Whether it's a sharp of a flat doesn't really matter, the note has the same frequency, just a different name. To recap, this gives us a grand total of 12 notes in one octave. If you were to measure the frequency of a note, then measure the frequency of a note exactly one octave higher, you would see that the higher note has exactly twice the frequency of the lower note. For…from academo.org
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