Facsimiles Manuscripts 38 Music 38 Scores 25 Orchestral music 7 Percussion ensembles 2 Piano with orchestra 2 المزيد ... Songs (Medium voice) with instrumental ensemble 2 String quartets 2 Cello music 1 Cello with chamber orchestra 1 Choruses, Sacred (Children's voices) with orchestra 1 Choruses, Secular (Mixed voices) with chamber orchestra 1 Choruses, Secular (Mixed voices) with instrumental ensemble 1 Choruses, Secular (Mixed voices) with percussion 1 Concertos (Piano) 1 Electronic and violin music 1 Harp with instrumental ensemble 1 Harp with string orchestra 1 Harpsichord music 1 Microtonal music 1 Percussion and piano music 1 Piano and electronic music 1 Piano music (Pianos (2)) 1 Piano trios 1 Requiems 1 Sextets (Piano, harp, violins (2), viola, cello) 1 Songs (High voice) with instrumental ensemble 1 Songs (High voice) with orchestra 1 Songs (High voice) with piano 1 أقل ...