Free · in your phone's browser · nothing uploaded
Wine glass tuner
Five glasses, some water, a pencil. Tap a glass and your phone says the note, and whether to add water or pour some off, until the five play a scale.
The glass rings
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Glass 1 sets the key. Fill it about two thirds.
Strike the rim gently with a pencil or a chopstick, close to the phone. The microphone opens for three seconds and closes. Nothing is recorded or sent.
Your five glasses
How water tunes a glass
A glass rings when its wall wobbles. Water makes the wall heavier, so it wobbles slower: more water, lower note. If the glass rings too high, add a splash; too low, pour a little off. Small sips matter near the top.
The first glass sets the key, whatever it rings. The next four go up a step each, so each needs a little less water than the one before: do, re, mi, fa, sol. Five notes are enough for Mary Had a Little Lamb.
What it can hear, and what it can't
It reads the glass's own note, the steady ring after the tap. A gentle tap with something soft or wooden works best; a hard knock with a metal spoon wakes the glass's higher ring and the spoon's own, and the reading can slip. Thin wine glasses ring longest. If a glass won't read, wet a finger and rub the rim slowly until it sings: that long tone reads cleanly.
It names the nearest note on a piano, but the scale follows your first glass, so the five are in tune with each other even if glass 1 sits between two notes.
Then make something of it
Your scale goes into Brumm as a melody, up and back down, inside a club track with a beat and a bass. No account, no upload: the notes travel inside the link itself.
The sound stays on your phone: the tool reads it in the browser and keeps nothing. How the site counts visits.