ChordCraft Music Theory

Learn, play, and master music theory — all in one beautifully simple app. ChordCraft takes you from your very first note to confident chord progressions and ear training, with short interactive lessons and hands-on practice you'll actually look forward to. No account, no ads, no internet required. Just open it and play. START WHERE YOU ARE Take a 2-minute placement test to get your Music Theory Rating, or skip it and dive straight in. Either way, ChordCraft meets you at your level. EVERYTHING IN ONE PLACE - Learn the Basics — interactive lessons from zero - Note Reading — identify notes on the staff - Chord Practice — identify and build chords, from triads to extensions - Chord Progressions — Roman numerals and real songwriting moves, with a Builder and a Generator - Ear Training — recognize intervals and chords by ear - Rhythm — tap along and read rhythmic notation - Free Play — play any chord and ChordCraft names it for you - Listen — play on a real instrument and ChordCraft names what it hears BUILT TO KEEP YOU GOING Track your progress with Stats, earn Awards, and watch your Music Theory Rating climb as you practice. PRIVATE BY DESIGN ChordCraft collects nothing. Everything stays on your device — no analytics, no ads, no trackers. The Listen and Free Play features use your microphone to recognize what you play; audio is processed live on your device and is never recorded, stored, or sent anywhere. A one-time purchase. No subscriptions. Questions or ideas? Email danielsduderstadt@gmail.com — every message gets read.