Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) 宮谷 大輝 and 中山 英樹,A method for finding the relationship between music mood and the information of time and frequency by music mood classification using spectrogram images,IPSJ SIG Notes,,Information Processing Society of Japan (IPSJ),2015-02-23,2015,24,1-5,https://cir.nii.ac.jp/crid/1572261552776804352,