Sine: Learn Perfect Pitch

Sine teaches perfect pitch the way you would learn anything else: a little at a time, with someone keeping track. You start with two notes, C and G. When you can tell them apart without thinking, a third is added, then a fourth, until you can name all twelve.

HOW IT WORKS

• Meet each key first. Before a new note is quizzed, Sine shows you where it sits on the keyboard and plays it next to the notes you already know.
• Miss one, and you hear both. Sine plays the note you chose and then the right one, so you learn the gap, not just the answer.
• Sine keeps notes. After every lesson you see what slipped, what you used to miss and now get right, and what comes next.
• Ten units, each in its own place, from the white keys to the black keys and on to chords.

THE SINE SCORE

A perfect pitch test out of 100, inside the app. Twelve notes, unique sounds, tuning, two notes at once and three at once. Take it again after a week and see how far your ear has come. Name all seven white keys on your first try and you can skip the first unit.

GAMES FOR WHEN DRILLS GET DULL

• Sine Duel: a note plays. Name it before Sine does.
• Defuse: tap back a run of notes to cut each wire.
• Tune-up: flat, sharp, or in tune, down to a few hertz.

Play against Sine, or against a friend on one phone.

MADE WITH CARE

No ads. No tracking. Your progress is saved on your phone and follows you to a new one if you sign in with Google or Apple. A recorded grand piano throughout.

Perfect pitch is something you learn.

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