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Hooktheory

community

Music theory learning and songwriting — interactive books, chord database, and melody tools

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https://hooktheory.comapikeyeducationmediaconfidence: 75/1000 discoveries1 contributors

GET/api/songs

Search song chord progressions

Parameters

qstringrequired

Returns

songs[] with id, title, artist, section, chords[], key, tempo

GET/api/trends

Get chord progression trends

Parameters

chordstringoptional

genrestringoptional

Returns

next_chords[] with chord, probability, songs_count, examples[]

GET/api/books

Get interactive music theory books

Returns

books[] with id, title, chapters[], topics[], difficulty