MT820 General
MT821 Physiology of the voice
MT823 History of vocal instruction and study
MT825-853 Systems and methods
Special techniques
MT855 General works
MT860 Chanting
MT870 Sight-singing
MT875 Chorus and part-singing
MT878 Breathing
MT882 Tone production
MT883 Pronunciation; diction
MT885 Studies and exercises
MT890 Instructive editions; teaching pieces
MT892 Interpretation, phrasing, expression
Classification Sujet / Subject
M 1500 Opéras / Operas (partitions/scores)
M 1503 Opéras-Partitions pour voix et piano / Vocal scores with piano
M 1528-1529.5 Duets, trios, etc. for solo voices
M 1610 Cantates profanes / Cantatas, Secular
M 1613 Chansons acc. d'orchestre / Songs with orchestra
M 1613.3 Chansons acc. d'ensemble instrumental / Songs with instrumental ensemble
M 1619-1621 Chansons acc. de piano / Songs with piano
M 1621.4 Cycles de mélodies / Songs cycles
ML 1700 Opéra / Opera (histoire/history)
MT 820+ Chant / Singing
M 2000 Oratorios
M 2020 Cantates sacrées / Cantatas, sacred
M 2023 Cantates sacrées - Partitions pour voix et piano / Cantatas, Sacred-Vocal scores with piano.
M 2102-2103 Chants sacrés acc. de piano / Sacred songs with piano
Orchestral Accompaniment
M1611 Collections: full scores
M1612 Collections: piano-vocal scores
M1613 Separate works: full scores
M1613.3 Separate works: other accompaniment
M1614 Separate works: piano accompaniment
M1615 Arrangements: Collections: full scores
M1616 Arrangements: Collections: piano-vocal scores
M1617 Arrangements: Separate works: full scores
M1618 Arrangements: Separate works: piano accompaniment
Other accompaniment or no accompaniment
M1619 Collections (more than one composer)
M1620 Collections: one composer
M1621 Separate works: piano accompaniment
M1621.2 Separate works: unaccompanied
M1621.3 Separate works: accompanied by piano and one other instrument
M1621.4 Song cycles
M1622 Vaudeville, music-hall songs, etc.
M1623 Accompaniment of one other instrument: Collections
M1624 Accompaniment of one other instrument: Separate works
M1625–1626 Recitations with music