Iguchi Yukihiro    Department   Undergraduate School  , School of Science and Technology    Position   Professor
Date	2023/01/07
Presentation Theme	A Method to Estimate Chord Progressions in Music Using n-grams and Rule Processing
Promoters	IEICE
Conference Type	Workshop/Symposium
Presentation Type	Speech (General)
Contribution Type	Collaborative
Country	Japan
Holding period	2023/01/07～2023/01/08
Publisher and common publisher	Kosuke TODA, Tsutomu SASAO, and Yukihiro IGUCHI
Details	In this paper, we treat a chord progression of music in a midi format as a classification problem, and propose a method to estimate chords from 120 registered chords. We add two parameters, order and weight , to the chromavector, and estimate the chord progression of a musical note by rule processing of evaluation values obtained from vectors. The estimated chord progressions are divided by an arbitrary number of chords, and the chord progressions are modified by a pattern matching using n-grams. The results of chord progression estimation for 20 musical notes by 4 compose rsshowedthattheaccuracies are between 0.3 and 0.8.