One Instrument
M6 - M14: Solo Organ
M6 - M7: Collections
M8: Sonatas
M8.5: Symphonies
M9: Suites, Variations, and Cyclical Works
M10: Fugues
M14.3-.5: Liturgical music
Two Instruments
M180 - M181: Duets (one or more organs, two or more players)
M182 - M186: Duets (organ and one other instrument)
Three Instruments
M300 - M304: Trios (organ and two other instruments)
Four Instruments
M400 - M404: Quartets (organ and three other instruments)
More than Four Instruments
Call numbers for instrumental music relate to instrumentation - call numbers for quintets (M500), sextets (M600), septets (M700), octets (M800), and nonets (M900) will follow similar instrumentation outlined in the M300 groupings.
Example
M300 - M304 = Trios (organ and two other instruments)
M400 - M404 = Quartets (organ and three other instruments)
M500 - M504 = Quintets (organ and four other instruments)
Orchestral Accompaniment
M1005 - M1006: Organ with orchestra (full scores, piano reductions)
M1108 - M1109: Organ with string orchestra (full scores, piano reductions)
ML128.O6: Organ bibliographies
ML550 - ML649: General books about the organ (history, criticism, construction, music)
MT180 - MT198: Technique, teaching pieces, fingering, phrasing, sight reading, accompaniment, etc.
One Instrument
M20 - M39: Solo piano
M20 - M22: Collections
M23: Sonatas
M24: Suites
M27: Variations
M28: Marches
M30 - M32: Dances
Two Instruments
M198 - M216: Duets & Duos (piano only)
M217 - M239: Duets (piano and one stringed instrument)
M240 - M271: Duets (piano and one wind instrument)
M272 - M283: Duets (piano and one plucked instrument)
M284 - M285: Duets (piano and one other - percussion, electronics, etc.)
Three Instruments
M310 - M314: Piano, two bowed instruments
M315 - M319: Piano, two wind instruments
M320 - M324: Piano, one bowed instrument, one wind instrument
M330 - M334: Piano, one wind instrument, one bowed instrument
M335 - M339: Piano, one wind instrument, one plucked instrument
M340 - M344: Piano and other instrument combinations
More than Three Instruments
Call numbers for instrumental music relate to instrumentation - call numbers for quartets (M400), quintets (M500), sextets (M600), septets (M700), octets (M800), and nonets (M900) will follow similar instrumentation outlined in the M300 groupings.
Example
M315 - M319 = Piano, two wind instruments
M415 - M419 = Piano, three wind instruments
M515 - M519 = Piano, four wind instruments
Orchestral Accompaniment
M1010 - M1011: Piano with orchestra (full scores, two-piano versions)
M1110 - M1111: Piano with string orchestra (full scores, two-piano versions)
ML128.P3: Piano bibliographies
ML650 - ML747: General books about the piano (history, criticism, construction, music)
MT220 - MT258: Technique, teaching pieces, fingering, phrasing, sight reading, accompaniment, etc.