Klef: Learn Music & Theory

Guitar, bass and piano now each sound like themselves. Redesigned pages, live duels with match history, photo avatars and smarter practice tools.

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/