How it works
Scale Degree turns theory knowledge into reflex. Short lessons teach each idea; spaced repetition makes it permanent.
Practice less. Remember more.
Each of the 1,400+ questions returns on its own schedule — sooner when you hesitate, later as it becomes automatic. The app grades you from how you answer (time, wrong taps, hints), so there's no self-rating. Five minutes a day compounds into fluency that doesn't fade between sessions.
Notes and degrees, not fingerings.
Answers are tapped on a 12-note chromatic grid relabelled for the active key — no fretboard, no keyboard, no audio required. Because you're learning the theory itself, everything transfers to whatever you play. Correct taps lock in green as you go; after a long pause, hints quietly narrow the field.
Start cold. No vocabulary assumed.
Every topic opens with a short, plain-language Learn screen before its first question, and any theory term inside a question is tappable — a 50-term glossary is always one tap away. If you've never heard "scale degree" or "leading tone," you can still start today.
Fourteen topics, eleven keys — your pick.
Start from a preset — Essentials, Core, or Complete — then choose exactly which topics and keys you work on. You still earn your way through in order, and progress is kept even for anything you set aside.
Scale degrees · Major scale · Major pentatonic · Natural minor · Minor pentatonic · Interval names · Modes
Key relationships · Circle of fifths
Diatonic triads · 7th chords · Suspended chords · Chord formulas · Chord progressions
A session is about five minutes — two lessons, then a quiet summary. It ends when it should, not when a streak demands.
Mastery is tracked per topic, per key — from your first C major lesson to the full circle of fifths.
Your progress lives in your private iCloud and follows you across your devices automatically.
Questions? See the FAQ or get in touch.