PianoCompanion
Piano Companion is a flexible chord and scale dictionary with user libraries and a reverse mode, circle of fifths, chord progression builder.
Keywords
chordmusicchordsscalesmusicpianocompanionlearnprogressionspatternsbuildermajorminordiminishedsus2sus4aug
Founder
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Product data sourced from public information. Last updated: Jun 22, 2025