Music Cataloging at Yale Call numbers
M6-M175 || M180-M298.5 || M300-M990 || M1000/M1100, etc. || M1005/M1105, etc. || M1500/M2000, etc. || M1528/M2018, etc. || M1611/M2102, etc. || MT179-MT735

Class numbers for music for 3 to 9 instruments M300-M990

M300-M9901

MX00-MX04
MX05-MX09
MX10-MX14
MX15-MX19
MX20-MX24
MX25-MX29
MX30-MX34
MX35-MX39
M340-M344
MX40-MX44
MX45-MX49
MX49-MX53
MX55-MX59
MX60-MX64
MX65-MX69
MX70-MX74
MX75-MX79
MX80-MX84
MX85
MX86
M990
Organ and 2-8 or more instruments
Harmonium and 2-8 or more instruments
Piano and string instruments
Piano and wind instruments
Piano, string, and wind instruments
Piano and plucked instruments
Piano, string, and plucked instruments
Piano, wind, and plucked instruments
Piano and 2 other instruments Trios only
Piano, and 3 or more string, wind, and plucked instruments
Piano and 3 or more other instruments
String instruments
Wind instruments
String and wind instruments
Plucked instruments
String and plucked instruments
Wind and plucked instruments
String, wind, and plucked instruments
Other combinations of 3 or more specified instruments (including works with non-musical objects used as instruments)
Other combinations of 3 or more unspecified instruments
Chamber music for instruments of the 18th century and earlier that are generally not used in the modern symphony orchestra

1Note: M900-M990 applies to nonets and larger combinations of purely chamber music.

Class Instruments
MX00-MX04
MX00

MX01
MX02

MX03
MX04
Organ and X other instruments
   Miscellaneous collections
   Original compositions
      General collections
      Special collections and separate works
   Arrangements
      Collections
      Separate works
MX05-MX09
MX05

MX06 
MX07

MX08
MX09
Harmonium and X other instruments
   Miscellaneous collections
   Original compositions
      General collections
      Special collections and separate works
   Arrangements
      Collections
      Separate works
MX10-MX14
MX10

MX11
MX12









MX13
MX14
Piano and X string instruments
   Miscellaneous collections
   Original compositions
      General collections
      Special collections and separate works
         M312=piano, violin or viola, cello
            M312.4=piano and 2 other string instruments
         M412=piano, violin, viola, cello
            M412.2=piano, 3 violins
            M412.4=piano and 3 other string instruments
         M512=piano, 2 violins, viola, cello
            M512.2=piano, 4 violins
            M512.4=piano and 4 other string instruments
   Arrangements
      Collections
      Separate works
MX15-MX19
MX15

MX16
MX17

MX18
MX19
Piano and X wind instruments
   Miscellaneous collections
   Original compositions
      General collections
      Special collections and separate works
   Arrangements
      Collections
      Separate works
MX20-MX24
MX20

MX21
MX22

MX23
MX24
Piano and string and wind instruments
   Miscellaneous collections
   Original compositions
      General collections
      Special collections and separate works
   Arrangements
      Collections
      Separate works
MX25-MX29
MX25

MX26
MX27

MX28
MX29
Piano and X plucked instruments
   Miscellaneous collections
   Original compositions
      General collections
      Special collections and separate works
   Arrangements
      Collections
      Separate works
MX30-MX34
MX30

MX31
MX32

MX33
MX34
Piano and X string and plucked instruments
   Miscellaneous collections
   Original compositions
      General collections
      Special collections and separate works
   Arrangements
      Collections
      Separate works
MX35-MX39
MX35

MX36
MX37

MX38
MX39
Piano and X wind and plucked instruments
   Miscellaneous collections
   Original compositions
      General collections
      Special collections and separate works
   Arrangements
      Collections
      Separate works
M340-M344
M340

M341
M342

M343
M344
Piano and 2 other instruments (Trios only; for quartets, quintets, etc., see MX40-MX44)
   Miscellaneous collections
   Original compositions
      General collections
      Special collections and separate works
   Arrangements
      Collections
      Separate works
MX40-MX44
MX40

MX41
MX42

MX43
MX44
Piano and 3 or more string, wind, and plucked instruments (Quartets, quintets, etc. only; for trios, see M340-M344)
   Miscellaneous collections
   Original compositions
      General collections
      Special collections and separate works
   Arrangements
      Collections
      Separate works
MX45-MX49
MX45

MX46
MX47

MX48
MX49
Piano and 3 or more other instruments
   Miscellaneous collections
   Original compositions
      General collections
      Special collections and separate works
   Arrangements
      Collections
      Separate works
M349-M353
M349

M350
M351

M352
M353

MX50-MX54
MX50

MX51
MX52




MX53
MX54
3 string instruments
   Miscellaneous collections
   Original compositions
      General collections
      Special collections and separate works
   Arrangements
      Collections
      Separate works

4 or more string instruments
   Miscellaneous collections
   Original compositions
      General collections
      Special collections and separate works
         M452=2 violins, viola, cello
         M452.2=4 violins
         M452.4=other combinations of 4 strings
   Arrangements
      Collections
      Separate works
MX55-MX59
MX55

MX56
MX57
   MX57
   MX57.2
   MX57.4

MX58
MX59
3 or more wind instruments
   Miscellaneous collections
   Original compositions
      General collections
      Special collections and separate works
         Both woodwinds and brasses
         Woodwinds only
         Brasses only
   Arrangements
      Collections
      Separate works
MX60-MX64
MX60

MX61
MX62

MX63
MX64
3 or more string and wind instruments
   Miscellaneous collections
   Original compositions
      General collections
      Special collections and separate works
   Arrangements
      Collections
      Separate works
MX65-MX69
MX65

MX66
MX67

MX68
MX69
3 or more plucked instruments
   Miscellaneous collections
   Original compositions
      General collections
      Special collections and separate works
   Arrangements
      Collections
      Separate works
MX70-MX74
MX70

MX71
MX72

MX73
MX74
3 or more string and plucked instruments
   Miscellaneous collections
   Original compositions
      General collections
      Special collections and separate works
   Arrangements
      Collections
      Separate works
MX75-MX79
MX75

MX76
MX77

MX78
MX79
3 or more wind and plucked instruments
   Miscellaneous collections
   Original compositions
      General collections
      Special collections and separate works
   Arrangements
      Collections
      Separate works
MX80-MX84
MX80

MX81
MX82

MX83
MX84
3 or more string, wind, and plucked instruments
   Miscellaneous collections
   Original compositions
      General collections
      Special collections and separate works
   Arrangements
      Collections
      Separate works
MX85 Other combinations of 3 or more specified instruments
MX86 Other combinations of 3 or more unspecified instruments
M990 Chamber music for instruments of the 18th century and earlier that are generally not used in the modern symphony orchestra; use:
M182+ for 1 instrument of the 18th century and earlier and organ
M239, M270-M271, M282-M283, M284-M285 for 1 instrument of the 18th century and earlier and piano
M177-M986 for ensembles with both instrument(s) of the 18th century and earlier and modern instrument(s)


Comments to Mickey Koth Yale University Music Library
Last revised August 18, 2011.