🎵 Music Tools

Scales, chords, key finding, and music theory

Key Finder

Select notes on a virtual piano to discover what musical key you're in

Key Info

Explore any musical key: scale notes, diatonic chords, and key relationships

Chord Info

Look up any chord: notes, inversions, and which keys contain it

Chord Progression Builder

Build and play chord progressions using diatonic chords from any key

Interval Calculator

Find the musical interval between any two notes with consonance info

Scale Comparison

Compare two scales side by side to see shared and unique notes

Circle of Fifths

Interactive circle of fifths showing all major and minor key relationships