Klef: Learn Music & Theory

Learn to read music in minutes a day. Sight-reading, ear training, chords, tuner and metronome — all in one app, like a game.

Klef is the pocket conservatory that makes learning music as fun as a game. Start from zero or level up — from reading notes to ear training, chords to music theory, it's all in one app.

WHAT YOU'LL LEARN • Sight Reading — read the staff fast, on reflex (treble/bass/mixed clef) • Ear Training — hear and name intervals, chords and melodies • Rhythm — feel the beat and note values • Music Theory — scales, modes, chords and key signatures

TOOLS — ALL IN YOUR POCKET • Tuner — guitar, bass, ukulele, violin; tap a string to hear its tone • Metronome — time signatures, subdivisions, gradual tempo, tap tempo • Chord Lab — identify chords, find chords, scales, circle of fifths, progressions • Interactive piano, guitar and bass

WHY KLEF • Real progress in 5 minutes a day • Streaks, daily rewards and a weekly league keep you going • Duel a friend and climb the ranks • Every tool teaches the "why" and "how," not just the answer

Whether your instrument is piano or guitar, Klef turns you into a musician who reads notes and trains the ear.

Start today. Keep your ear awake all day.

Klef Plus is an auto-renewable subscription. • Plans: Klef Plus Monthly and Klef Plus Yearly • Payment is charged to your Apple ID at confirmation of purchase • The subscription automatically renews unless canceled at least 24 hours before the end of the current period; your account is charged for renewal within 24 hours prior to the end of the period • You can manage or cancel your subscription anytime in your App Store account settings Privacy Policy: https://klefapp.github.io/klef-legal/ Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/