Singing practice

Want to sing better?
Sing one line and find out how.

Pick a 5–15 second slice of a song (one musical line, not the whole track), sing it once, and get one clear next step. A microphone helps for warm-up and recording, but you can upload a vocal file instead. Wear headphones when you can — speakers bleed into the mic.

Try it — takes a minute

How it works

  1. It finds one problem. Not a page of metrics — the single thing most worth fixing in this phrase.
  2. It gives you one exercise. A vowel, a tempo, or a timing drill aimed at exactly that.
  3. It measures the retry. Sing it again and it re-reads the same measurement on the new take, then reports the difference. A change too small to measure reliably is reported as no change, not as progress.

What you get

One phrase, one thing to fix

This is a real result, not a mockup: two sopranos singing the same phrase of Caro mio ben, measured by the engine below.

Fix this phrase

Steady the middle of the note

sustain pitch

What I heard

Around 0:10, the middle of that word slid instead of staying level.

Do this once

Sing the line slowly on the hum at the end of 'sing' — 'ng'. Put your tongue lightly up like the end of 'sing'; keep the hum easy; don't add the words yet.

Why it helps

Taking the words away lets your ear feel whether the note stays still before the lyric comes back.

How you’ll know

The hum feels like one steady buzz, and the note does not sag or wobble before you add the lyric back.

Show the measurements

From 9.88–10.25s, the sustained body spreads 41 cents and drifts 72 cents downward.

Keep the sustained body within 50 cents and narrow its spread by at least 10 cents.

Your own result appears here once you record a take.

Your turn

Four beats — warm up, pick a line, sing, get one fix

You are on step 1: a one-minute glide so we learn your range. You can skip to the song if you are in a hurry.

  1. 1 Warm up
  2. 2 Choose line
  3. 3 Sing take
  4. 4 One fix
01

Step 1 · warm up

Glide up on “ooh” (siren)

Research-backed first move: a smooth glissando on a hum or lip trill wakes the voice without a note to “hit.” No wrong notes here — only how wide and steady your glide feels. Your first steady pitch becomes the bottom of the guide; the dotted line shows where we will ask you to rise.

  • Headphones on if you have them (keeps speaker bleed out of later takes).
  • Allow the mic when asked — we only listen while this panel is open.
  • One gentle ooh from low to high; lip trill or hum is fine (SOVT).

02

Step 2 · backing track

Choose a short line to sing along to

Pick a starter example (about ten seconds) or upload your own file. You are matching the singer’s pitch and timing — not cloning their tone. When this step is done, the status below turns green.

Next: pick an example or upload a song above.

Sing a different part of it
03

Step 3 · your voice

Sing the line once

Press Sing it now when you are ready. We record locally first; nothing uploads until you tap How did I do? Redo as many times as you like — perfection is not the goal on the first pass.

or
Count me in

Count me in shows a short on-screen countdown (2 or 4 beats) before the backing starts, so you know when to come in. Your microphone opens at the same moment as playback — close, but not to the millisecond.

Wear headphones if you can. On speakers the backing gets picked up by the microphone and measured as if you sang it. Your browser only asks for the microphone when you press record, and you never hear yourself echoed back.

No take recorded yet
Step 4 happens after you have a line and a take.

Both means the backing track and your vocal take. We upload them together, separate the original vocal, and return one coaching focus — not a scoreboard. No account required.

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