Sheet Music
M125 – Anthologies of solo guitar music
M126 – Anthologies of music originally for solo guitar
M127 – Individual pieces originally for solo guitar
M128 – Anthologies of music arranged for solo guitar
M129 – Individual pieces arranged for solo guitar
M292-293 – Guitar duets
M294-295 – Guitar and bowed instrument duets
M296-297 –Guitar and wind instrument duet
M365-369 – Guitar trios
M370-374 – Guitar and bowed instrument trios
M375-379 –Guitar and wind instrument trios
M380-384 – Guitar, wind, and bowed instrument trios
Call numbers between M400-999 follow the pattern established between M365-384.
The first digit indicates the number of performers and the last two the instrumentation.
Example: M375 – First digit is 3, so 3 musicians needed. Last 2 digits are 75, so instrumentation is guitar and wind instrument (any combination).
M1037.4.G8 – Guitar concertos with orchestra (or piano reduction)
M1137.4.G8 – Guitar concertos with string orchestra (or piano reduction)
M1623.8 – Anthologies of secular song with guitar accompaniment
M1624.8 – Individual secular songs with guitar accompaniment
MT583 – Guitar teaching pieces (i.e. – etudes)
MT585 – Guitar exercises
Books
ML128.G8 – Guitar bibliographies
ML1010-1013 – Lute history
ML1015.G9 – Guitar history
MT560-570 – Banjo technique
MT580-599 – Guitar technique
The Guitar and Its Music by 
Engineering the Guitar by 
The Cambridge Companion to the Guitar by 
The Complete Encyclopedia of the Guitar by