Music Theory & Ear Training

Some musicians hear a song once and just KNOW the chords. That's not a gift - it's a trained skill, and this app trains it from absolute zero. Most apps teach you theory OR drill your ear. This one walks the whole path: understand it, hear it, then play it back - so knowledge turns into a musician's ear.

🌳 THE COMPLETE COURSE - 1,496 LESSONS
No experience needed. 12 levels take you from "what is a note?" to jazz harmony.
• Scales, keys, intervals, chords, progressions, rhythm, harmony
• EVERY page plays out loud - tap the piano keys, hear every example
• Read real notation, step by gentle step
• Diagrams you can touch: the circle of fifths, chord builders, rhythm grids

👂 EAR TRAINING THAT ACTUALLY STICKS
A guided 24-chapter journey across the night sky - not random drills.
• Start by feeling where notes want to resolve (the real foundation)
• Name intervals, chords, cadences and keys by ear
• Learn to PREDICT the next chord - the secret behind playing by ear
• Every answer explains WHY, so your ear and your brain grow together

🎤 THEN PLAY IT BACK FOR REAL
• Transcribe: a riff loops, you tap it back note by note
• Play It Back: hear a note, play it on your REAL guitar or piano - the mic checks your pitch
• Loop it, slow it, reveal it - work like musicians actually work

🧭 A COACH THAT KNOWS YOUR WEAK SPOTS
It tracks 21 skills separately and builds every session around what YOU find hard, with spaced repetition so nothing fades.

🔥 BUILT TO KEEP YOU GOING
Daily streaks, XP, levels, a weekly leaderboard - one streak across lessons AND ear training. Level up and unlock new instrument sounds.

🎸 PIANO AND GUITAR, EVERYWHERE
Real open-chord shapes, fretboard maps and keyboard diagrams side by side. Singers and producers welcome too - the ear training works for everyone.

💜 EVERYTHING FREE. NO ADS. NO PAYWALLS.
The full course and all 8 trainers, completely free. An optional account backs up progress and puts you on the leaderboard.

Five minutes a day. In a month you'll hear music differently. In a year you'll be the one who plays it after hearing it once.