Short daily lessons, practice built from the notes you miss, and games that keep it fun.
Music teachers: get early accessNo reference note, no hints. A note, a guess, and a word from Sine.

One note. Nothing to hum up from.

Tap the note you heard. Only one is right.

Wrong, and you hear both: yours, then the right one.
Every answer is kept. Sine finds the notes you miss and what you mistake them for, builds your practice around them, and shows you each one climbing from one session to the next.
New
Every unit has a place of its own. Now and then, after a lesson, something happens there at night: the fireflies come out, the power cuts, rain hits the roof. Play it through for a postcard, and leave a keepsake behind.
Finish Unit 1 and keep your eyes open. These are the only hints.


Every note, one key at a time, then up and down the octaves and on to the harder ear. Games with a theme each, Rivals leagues against other players, a band, an orchestra and a ship's crew to find the wrong note in, trophies with a room of their own, friends to practise with, and a score that says how far you have come.

Before each new note, Sine walks you through it on the piano: hear it, hum it, find it.

Each lesson is set in its unit's place, and each unit opens with a short scene.

Find who is out of tune in the band, the orchestra or out at sea, run a tuning shop, race Sine to the note, or climb Rivals' leagues against real players.
Free to play. Encore for the whole show.
Free
Everything you need to start, and to keep going.
Encore
All of Sine, with nothing held back.
7 days free, then $14.99 a year.
Or $1.99 a month, or $29.99 once.
US prices; your store shows yours.
Band, orchestra, high seas
A school band or an orchestra plays a tune, and one player is out of tune. Hold a player to hear them on their own, then call out the one who sounds off.

From the practice field to contest day, each its own place, with its own songs and its own way to go out of tune.

Find who is out, then say which way. Later maps bring a player who drifts, two out at once, and a band in parts.

The whole band on stage, a few cents out, and a rating for the last level. Finish a map and Sine wins its outfit.
Out now in Sine, on iPhone and Android. The Practice field, Friday night lights, Rehearsal and Summer lawn are free, and a high seas edition is in beta, with Port Pitch open.
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Grow a tree with your friends. Every answer waters it, and everyone's Sine hangs out in the garden.
Free in Sine. Start one from your profile.
Four short parts, no reference note, one score out of a hundred: name the notes, spot who is out of tune, hold a note through a run of others, and catch the note that changed. It opens once a week, so the number means something.
Perfect pitch is something you're born with.
Adults learn it too. The notes first, one at a time, then the chords.
A ring-tailed lemur with very good ears and plenty to say. He walks you through every new note, cheers you on a run, and keeps a secret or two.
A handful of people who play, teach and build. The reply to your email comes from someone who made the thing.
About usOut now on iPhone and Android. Free to start.