M 2 Historical Sets
M 3 Composers’ Collected Works
M 6-180 Solo Instrument
M 20-37 Solo piano music
M 40-44 Solo violin music
M 50-54 Solo cello music
M 60-64 Solo flute music
M 180-298.5 Two instruments
M 217 Violin and piano
M 240-244 Flute and piano
M 248-251 Clarinet and piano
M 260-261 Trumpet and piano
M 300 Trios
M 312 Piano Trios
M 351 String Trios
M 400 Quartets
M 452 String Quartets
M 500 Quintets
M 556 Wind Quintets
M 557 Brass Quintets
M 600 Sextets
M String Sextets
M 700
M 800
M 900
M 1000 Orchestra music
M 1001 Symphonies
M 1010 Piano with Orchestra (concertos)
M 1012 Violin with Orchestra
M 1015 Violin with Orchestra (piano reduction)
M 1023 Clarinet with Orchestra
M 1032 Trombone with Orchestra
M 1100 String Orchestra
M 1200 Band Scores
M 1470 Chance and electronic works
M 1500 Stage and dramatic works
M 1500 Operas, musicals (full scores)
M 1503 Operas, musicals (vocal scores)
M 1508 Songs from musicals
M 1520 Ballet and dance
M 1600 Songs
M 1619 Song anthologies
M 1620 Art songs, Lieder
M 1630.18 American popular songs, fake books
M 1977 Wedding music
M 2000 Sacred vocal
M 2020 Cantatas (eg. JS Bach) full score
Music is arranged on the shelf by a "Call Number". All printed music score call numbers begin with "M"
Example 1: M 557.B252 op. 31
Example 2: M 1001.L69f 2003
Example 3: M 1630.18.A415 1990z