CHORD PROGRESSION ESTIMATION AND DETECTION DEVICE AND CHORD PROGRESSION ESTIMATION AND DETECTION PROGRAM

摘要

PROBLEM TO BE SOLVED: To provide a chord progression estimation and detection device that can estimate and detect more correct chord progressions by musical estimation that considers cadence of performance information.;SOLUTION: A chord progression estimation and detection device that estimates a chord from performance information comprises: a chord detection part 32 for detecting a plurality of chords and a likelihood of each chord from the performance information at each specific section; a chord function estimation part 34 for estimating a chord function of each chord at each specific section; a chord function determination part 35 for determining a final chord function progression of the chord function progression obtained by the chord function estimation part 34 according to a plurality of basic cadences; and a chord allocation part 37 for allocating a chord to a chord function of each cadence.;COPYRIGHT: (C)2015,JPO&INPIT