( F-Pa 5198). See Sources, MS, §III, 4 .
J. Bradford Young
Music libraries classify and arrange their collections by content according to one of several systems. The M schedule of the Library of Congress (LC) Classification, developed by oscar g.t. Sonneck in 1902, is the most widely used. It was taken up by many other libraries to reduce cataloging costs, when the Library of Congress increased the distribution of its printed catalog cards. The Dewey decimal classification (DDC), still in use especially in public libraries, did not distinguish music from music literature until ...
Manuscript. See Autograph; Sources, MS; Sources of instrumental ensemble music to 1630; Sources of keyboard music to 1660 ; and Sources of lute music .