Home // SOCIETY TRENDS 2023, International Conference on Technical Advances and Human Consequences // View article

Chord Extraction Method in Development of a Score Click Playback System

Authors:
Kenta Morita
Naoki Morita
Chiharu Nakanishi
Chiaki Sawada
Kazue Kawai

Keywords: Chord, Score Analysis, Video Analysis, Piano Lesson.

Abstract:
The purpose of this study is to recognize the locations of the chords from sound data of recorded piano performances. Previous methods have been unable to recognize all the musical scales contained within a chord and to identify the location of the chord. To identify the chord points, we adopted two ideas. The first idea is that, in instances where multiple notes of the same musical scale are present, if even one note reaches the predetermined threshold, it is considered as representing the respective scale. The second idea involves moderating the determination of whether the threshold has been exceeded. To validate the efficacy of the proposed method, piano performances of scores containing chords were recorded, and the method’s ability to identify chord locations from the recorded data was assessed. The results demonstrated a notable improvement in identifying chord points with the proposed method, achieving an approximately 88% identification rate of musical notes, which is significantly superior to the approximately 14% achieved by the preceding method.

Pages: 1 to 3

Copyright: Copyright (c) IARIA, 2023

Publication date: November 13, 2023

Published in: conference

ISBN: 978-1-68558-087-2

Location: Valencia, Spain

Dates: from November 13, 2023 to November 17, 2023