Voice MUSIC 846 Instruction & Study 845 Printed Music 786 Lyrics 746 Vocal 746 History and criticism 295 Histoire et critique 237 Opera 132 Music 126 BIOGRAPHY & AUTOBIOGRAPHY 111 Criticism and interpretation 105 Composers & Musicians 102 History 96 Musique 93 Genres & Styles 92 General 84 Singing 81 Chant 75 Histoire 68 Voix 62 Social aspects 60 Popular music 45 Musique populaire 43 HISTORY 42 Rock musicians 42 Aspect social 41 Musiciens rock 41 Piano-Vocal-Guitar 40 Instruction and study 39