Music 326 Música 221 History and criticism 190 Instruction and study 86 History 69 Popular music 54 Historia 53 Máis ... Historia y crítica 50 Música popular 39 Social aspects 32 Criticism and interpretation 30 Folk music 28 Rock music 28 Philosophy and aesthetics 27 Musique 25 Opera 25 Biografía 23 Musicians 22 Music therapy 19 Rock musicians 18 Composers 17 Musicology 15 Piano 15 Étude et enseignement 14 Political aspects 14 Motion picture music 13 School music 13 Instrucción y estudio 12 General 11 Terapia 11 menos ...