Harmony and rhythm structure detection

Harmony and rhythm structure detection

Gabriel Meseguer Brocal

June, 2009

Degree in Telecommunications Engineering: Image and Sound

Escuela Politécnica Superior
Universidad de Alicante


This project aims to build an automatic system for extracting the rhymic and harmonic information from a musical audio signal. First the harmony changes are detected and their duration. With them, the tempo is inferred. Using the harmonic analysis, tonality is computed and the song is classified into a musical genre. First this is applied to symbolic music (MIDI files) and then to audio transcriptions.


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  1. Technical report

[ Versión en castellano ]