Music 391 Música 305 History and criticism 231 Instruction and study 85 History 75 Popular music 75 Historia 69 más ... Historia y crítica 67 Social aspects 56 Música popular 48 Criticism and interpretation 35 Operas 34 Philosophy and aesthetics 32 Opera 30 Rock music 29 Enseñanza 26 Folk music 26 Biografía 23 Music therapy 22 Composers 21 Psychological aspects 21 Musicians 20 Political aspects 20 Instrucción y estudio 18 Rock musicians 16 Music theory 15 Piano 14 Aspectos sociales 13 Musical instruments 13 Performance 13 menos ...