Is this a pitch test?

It checks every note you sing, but it doesn’t give you a score. It shows how far off each note is and when, so you can see the pattern yourself.

How many cents off is out of tune?

Within about 5 cents sounds in tune to most listeners, and 20 cents or more sounds clearly sharp or flat.

Why do I go flat on long notes?

Often because the breath behind the note fades before the note ends. The trace shows exactly when the sag starts, which tells you where to work.

Does it work for instruments?

Yes, and it’s at its best there. It was built for a cellist checking arpeggios: play one slowly and you see each note land on the center line, or miss it, with its name written in. It works the same on violin, trombone and any instrument that plays one note at a time.

Singing Intonation Tracker

Are you really in tune?

Sing or play and see how far each note lands from the center, in cents, up to half a semitone either side.

INTONATION TRACKERmic off

Expand toolOpen workspace

Ready for your first note.

Press Start, allow your microphone, then sing or play a note and hold it.

Start

Your audio stays on this device. The browser asks for the mic only when you press Start.

Your audio stays on this device.

SETTINGS

In the iOS & Android app

Reference: A4 = 440 Hz
Transposition: C
Note labels: Letters

IN THE iOS & ANDROID APP

What the app adds

Your own reference: Set A4 to your own reference tuning.; On the web: A4 = 440 Hz
Transposition: Shift the note names by up to an octave, for example to read trumpet notes.; On the web: concert pitch
Note labels: Letter names or solfège.; On the web: letter names

The apps are free to download, with an optional yearly subscription.

MIC HELP

If the mic is blocked, click the lock or microphone icon in your browser's address bar, allow the microphone for this site, then reload the page and press Start.

Nothing happens when you play? Check that the right input is selected in your system's sound settings.

Read the trace

What changes in your practice

Knowing you sang out of tune isn’t much use on its own. Knowing you always land a few cents flat on the way up is.

Your error has a shape.
Zoomed to 50 cents either side of the center, the trace shows the scoop at the start of a note, the sag in the middle and the drift at the end.
Held notes label themselves.
Hold a pitch for about half a second and its name is written on the center line. The note you’re on is picked out in gold.
No score and no pass mark.
It doesn’t grade the take or choose your next exercise. It shows what you did and leaves the decision to you.

Step by step

How to test your pitch

1. Get a reference.
Play a note on the Keyboard or the Tone Generator.
2. Sing it and hold it.
Watch whether the line lands on the center, starts low and climbs, or sags as you run out of breath.
3. Find your pattern.
Repeat on a few notes across your range. The labels show which notes drift and in which direction.

In the iOS & Android app

Even better in the app

The Intonation Tracker in the Pitch Diagram app

Your own reference: Set A4 to your own reference tuning.; On the web: A4 = 440 Hz
Transposition: Shift the note names by up to an octave, for example to read trumpet notes.; On the web: concert pitch
Note labels: Letter names or solfège.; On the web: letter names

The apps are free to download, with an optional yearly subscription.

Good to know

Questions

Is this a pitch test?: It checks every note you sing, but it doesn’t give you a score. It shows how far off each note is and when, so you can see the pattern yourself.
How many cents off is out of tune?: Within about 5 cents sounds in tune to most listeners, and 20 cents or more sounds clearly sharp or flat.
Why do I go flat on long notes?: Often because the breath behind the note fades before the note ends. The trace shows exactly when the sag starts, which tells you where to work.
Does it work for instruments?: Yes, and it’s at its best there. It was built for a cellist checking arpeggios: play one slowly and you see each note land on the center line, or miss it, with its name written in. It works the same on violin, trombone and any instrument that plays one note at a time.

One musical toolkit