Interactive Theory Tools

Tools for College Music Theory

Analyze progressions, identify chords, and visualize scales — everything you need for Roman numeral analysis, SATB writing, and exam prep.

Roman Numeral Analyzer

Analyze chord progressions with full harmonic analysis — chord functions, cadences, tendency tones, and voice-leading notes. Switch to Practice Mode to spell Roman numerals in any key.

Analyze ModePractice ModeCadence DetectionSecondary Dominants

Theory Tool

Chord Finder

Enter any combination of notes and instantly identify the chord — quality, inversion, Roman numeral in every key. Ideal for analysis and songwriting.

Chord IdentificationAll InversionsMulti-Key AnalysisChord Formula

Visual Tool

Piano Keyboard Visualizer

See scales, chords, and intervals on a full piano keyboard with color-coded highlighting. Scale degrees, Roman numerals, figured bass — all at a glance.

Scale ModeChord ModeInterval ModeFree Play

Built for College Music Theory

These tools cover Roman numeral analysis, figured bass, secondary dominants, borrowed chords, Neapolitan chords, augmented sixths, SATB voice-leading, and all cadence types — everything in a typical Music Theory I & II curriculum.