| M1000–M1075 | Orchestra (including chamber orchestra) |
| M1000 | Collections (original and arranged compositions or a variety of forms) |
| M1001 | Symphonies |
| M1002 | Symphonic poems |
| M1003 | Suites & variations (including separately published suites from operas, ballets, etc.) |
| M1004 | Overtures (including separately published opera preludes, entr’actes, and overtures) |
| M1005–1041 | Solo instrument with orchestra (arranged by instrument) |
| M1042 | Concertos for orchestra |
| M1045–1049 | Pieces: general, marches, dances |
| M1060–1070 | Arrangements |
| M1075 | Potpourris, fantasies, etc. |
| M1100–M1160 | String orchestra |
| M1100 | Collections (original and arranged compositions or a variety of forms) |
| M1101 | Symphonies |
| M1102 | Symphonic poems |
| M1103 | Suites & variations (including separately published suites from operas, ballets, etc.) |
| M1104 | Overtures (including separately published opera preludes, entr’actes, and overtures) |
| M1105–1141 | Solo instrument with orchestra (arranged by instrument) |
| M1142 | Concertos for string orchestra |
| M1145–1149 | Pieces: general, marches, dances |
| M1160 | Arrangements |
| M1510-1527 | Other dramatic music |
| M1510–1518 | Incidental music |
| M1520–1526 | Ballets |
| M1527 | Motion picture, radio, and television music |
Classification Numbers for Books about Orchestra Music
Literature on orchestra music
| Ref. ML128.O5 | Bibliographies of orchestra music |
| ML1200 | General |
| ML1202–1208 | By period |
| ML1210–1251 | By region or country |
| ML1254–1270 | Forms and types (symphony, suite, overture, concerto, etc.) |
Orchestral music—studies and methods
| MT70–71 | Instrumentation and orchestration |
| MT85 | Conducting, score reading and playing |
| MT125, 130 | Analysis and appreciation |
| MT730 | Techniques |
