Music History and criticism 467 Instruction and study 174 Bibliography 84 Periodicals 80 Philosophy and aesthetics 59 Theory 53 Bio-bibliography 51 Dictionaries 51 Musicians 49 Indexes 47 History 45 Juvenile 39 Music appreciation 38 Composers 34 Biography 31 Discography 28 Acoustics and physics 24 Psychology 23 Congresses 21 Knowledge 20 Musical analysis 20 School music 19 Music and literature 18 Catalogs 15 Directories 15 Folk music 14 Music and society 14 Musicology 14 Performance 14