M20-M39
Solo Piano
M20-M22
Collections
M23
Sonatas
M24
Suites
M25-32
Individual Pieces
M32-39
Arrangements
M200-216
Piano Duets
M200-204
Piano four hands
M207-211
M214-215
Two or more pianos
M217-285
Piano and other solo instrument
M1010-1011
Piano w/orchestra
M1110-1111
Piano w/string orchestra
MT220-248
Piano techniques
ML128 . P3
Piano bibliographies
ML650-745
General works, construction, music and playing