Master Music Theory. One Chord at a Time.
Gamified chord spelling, inversion drills, and key signature practice across all 24 keys. Built for students who want exam-ready accuracy โ not just theory trivia.
Everything you need to pass the theory exam
No fluff. No busywork. Every drill is calibrated to the skills that actually show up on ABRSM, RCM, and university proficiency tests.
Chord Spelling
Spell triads and seventh chords with correct enharmonic notation across all 24 keys.
Key Signatures
Identify keys from sharps/flats or recall key signatures on demand โ both directions.
Inversions
Practice first, second, and third inversions with figured bass labels in real context.
All 24 Keys
Major and minor keys, rare spellings like Cb and E# included. No shortcuts taken.
Drill-ready in under a minute
Pick a Mode
Choose triads, sevenths, inversions, key signatures โ or go Mixed for a real workout.
Spell the Chord
Select the note letter, then the accidental. Diatonic spelling is enforced โ no shortcuts.
Track Progress
See accuracy and response time by key and chord type. Find your weak spots and fix them.
Interactive demo โ try it now
major triad
Stay consistent. Watch yourself improve.
Streaks, XP, and level progression keep you coming back. Daily challenges are personalized to your weak spots โ so every session is the most efficient practice possible.
- ๐ฅ Day streaks with weekly heatmap
- โก XP points for every correct answer
- ๐ Real-time accuracy and response time tracking
- ๐ฏ Daily challenge tuned to your weakest keys
- ๐ Level progression from Beginner to Theory Master
5-day active streak ยท Keep it going!
Free to start. Pro to master.
Student-friendly pricing. No credit card needed for the free tier. Upgrade when you're ready to go deep.
Free
- โBasic chord spelling (triads)
- โ5 keys to start
- โSession stats
- โDaily challenge (3/day)
Pro
- โAll 24 keys, all chord types
- โInversions + key signatures
- โTimed exam mode (unlimited)
- โFull analytics dashboard
- โPersonalized daily challenge
- โNo ads
- โProgress history (unlimited)
Get your FREE Music Theory Cheat Sheet
All 24 keys, every chord quality, common Roman numeral progressions โ a one-page reference built for exam day. Free for subscribers.
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Ready to ace your exam?
Join students who went from guessing chord spellings to passing proficiency exams with 80%+ accuracy. Your practice streak starts today.