| Call Number Range | |||
| Music - Collections | M1 | --> | M3.3 |
| Instrumental music | M5 | --> | M1490 |
| Instrumental music - Collections | M5 | ||
| Solo instrument | M6 | --> | M176.5 |
| Organ | M6 | --> | M19 |
| Piano | M20 | --> | M39.6 |
| Violin | M40 | --> | M44 |
| Viola | M45 | --> | M49 |
| Cello | M50 | --> | M54 |
| Double bass | M55 | --> | M58 |
| Other strings | M59 | --> | M59.5 |
| Flute | M60 | --> | M64 |
| Oboe | M65 | --> | M69 |
| Clarinet | M70 | --> | M74 |
| Bassoon | M75 | --> | M79 |
| Horn | M80 | --> | M84 |
| Trumpet | M85 | --> | M89 |
| Trombone | M90 | --> | M94 |
| Tuba | M95 | --> | M99 |
| Other winds | M100 | --> | M111 |
| Plucked instruments | M115 | --> | M142 |
| Percussions | M145 | --> | M175.5 |
| Other instrumental music | M176 | --> | M176.5 |
| Chamber music | M177 | --> | M990 |
| Chamber music - Collections | M177 | --> | M179 |
| Duets | M180 | --> | M298.5 |
| Trios | M300 | --> | M386 |
| Quartets | M400 | --> | M486 |
| Quintets | M500 | --> | M586 |
| Sextets | M600 | --> | M686 |
| Septets | M700 | --> | M786 |
| Octets | M800 | --> | M886 |
| Nonets & larger groups | M900 | --> | M986 |
| Orchestra | M1000 | --> | M1075 |
| Symphonies | M1001 | ||
| Concertos | M1004.5 | --> | M1041 |
| String orchestra | M1100 | --> | M1160 |
| String symphonies | M1101 | ||
| Concertos | M1105 | --> | M1142 |
| Band | M1200 | --> | M1270 |
| Concertos | M1205 | --> | M1206 |
| Other instrumental music | M1350 | --> | M1459 |
| Chance [Aleatory] music | M1470 | ||
| Electronic & computer music | M1473 | ||
| Other instrumental music | M1475 | --> | M1490 |
| Vocal music | M1495 | --> | M2199 |
| Vocal music - Collections | M1495 | ||
| Secular vocal music | M1497 | --> | M1998 |
| Operas | M1500 | --> | M1509 |
| Incidental music | M1510 | --> | M1518 |
| Ballets | M1520 | --> | M1526 |
| Choruses | M1530 | --> | M1610 |
| Solo songs | M1611 | --> | M1624.9 |
| Sacred vocal music | M1999 | --> | M2199 |
| Dramatic music [oratorios, etc] | M2000 | --> | M2007 |
| Masses | M2010 | --> | M2014.6 |
| Choruses | M2020 | --> | M2101.5 |
| Solo songs | M2102 | --> | M2114.8 |
| Unidentified compositions | M5000 | ||
| Instrumental techniques | MT170 | --> | MT810 |
| Vocal techniques | MT820 | --> | MT949 |
