Scores 6,088 Music 5,147 History and criticism 4,347 Scores and parts 2,725 Vocal scores with piano 2,236 Operas 1,982 History 1,204 more ... Symphonies 1,006 Manuscripts 974 String quartets 870 Facsimiles 816 Composers 805 Criticism and interpretation 760 Popular music 737 Organ music 651 Social aspects 649 Songs (High voice) with piano 634 Excerpts 612 Solo with piano 612 Jazz 558 Instruction and study 524 Songs (Medium voice) with piano 510 Cantatas, Sacred 506 Masses 488 Opera 474 Musicals 470 Orchestral music 459 Parts 446 Music theory 402 Concertos (Piano) 389 less ...