🎵 Music Theory Tools

Eight tools for musicians — intervals, chords, scales, transposition and note frequencies. Every one runs entirely in your browser.

🎵 Interval Calculator

Free music interval semitones and name calculator.

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🎹 Chord Builder

Free chord notes calculator.

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🎼 Scale Finder

Free musical scale notes calculator.

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🔀 Transposition Calculator

Free note transposition calculator.

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⏱️ Metronome Beat Duration Calculator

Free BPM to note-duration milliseconds converter.

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🎡 Circle of Fifths Reference

Free circle of fifths key signature reference.

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🎸 Guitar String Tuning Reference

Free guitar tuning reference chart.

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📻 Note Frequency Calculator

Free musical note to frequency (Hz) calculator.

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