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A novel music keyboard

Working

See harmony in just intonation, no music background needed

What it's for

  • hear what just intonation actually sounds like
  • get how harmony works without reading theory first
  • play a ratio like 3/2 or 5/4 instead of reading about it
Show 1 more
  • listen to a familiar piece retuned and hear the difference
Runs in the browser157 checksMusic and audio
Open A novel music keyboardChecked ad8e.pages.devLast change recorded

We have checked A novel music keyboard 157 times since 15 Sept 2026, and it answered every time. Its visible text has not changed since we started watching.

What it does

This is a browser instrument using rational numbers. Green keys on the right play sounds, and purple keys on the left change the harmony. Sweeping across keys is designed to sound consonant; you can record and play back.

Others that do this

Each answered its most recent check.

Looking for something else?

What stands out

  • No account required
  • Free

What we checked

  • App accessible

    The last check reached a working page.

  • Page rendered

    The last browser pass could not reach the page.

  • Screenshot kept

    We captured a picture of the page.

  • Looked at by an agent

    An agent opened the live site after the automated probe could not reach it. The product paints. The probe hit a DNS or timeout error, not a dead site.

Looked
8

8 browsers

Opened
21

21 browsers

Checks
157

157 checks

Watching
0

Nobody yet

Browsers on this site, not verified people.

Screenshot of A novel music keyboard
Screenshot from our last capture

Evidence

Each bar is one request we made
Checks
157
Working · last 40
100%
Median response
290ms
Watching since
15 Sept 2026

Of the last 40 checks, 40 answered (100%); the latest was on . Median response 290 ms. Watching since .

Browser render check

Checked 1 month ago in a real browser

2 of 3 pages rendered

  • /unreachable
  • /keyboard%20guide.txtrendered97ms
  • /musicrendered374ms

How the browser check works

Activity

Watching since
Last content change
None seen yet
Unchanged for
48 days
Certificate expires
in 57 days
  • The TLS certificate was renewed1 month ago
  • Its embedding policy changed1 month ago

How we track changes

What people say

No reviews yet.

Embed this status

For a README. It updates on every check.

A novel music keyboard — still works
[![A novel music keyboard — still works](https://itstillworks.app/api/badge/a-novel-music-keyboard)](https://itstillworks.app/verify/a-novel-music-keyboard)