Music Mastery
Chord ProTrainer
Master chords and progressions with intelligent practice tools. Whether you're a beginner or advancing, elevate your playing to the next level.
Interactive training
Interactive Circle of Fifths training to build fluency for improvisation and to memorize chord relationships.
Training Modes
Identify keys by their position on the circle or by scale degree using Roman numerals.
Progress & stats
Earn stars as you improve, stay motivated with a clear progression, and review detailed statistics to see how far you've come.
Hardmode
Try Hard mode when you want a serious challenge and bring your improvisation skills to the next level.
