Manuscript, in brown ink, in copyists' hands., For keyboard instrument., Contains French suites (BWV 812-815 and 817), the Chromatic fantasy and fugue (BWV 903), and other pieces., Many additional passages (including alternative movements) added in brown ink on the free staves and on 6 inserted p., in another early hand; also annotated with various musiological and bibliographical information throughout., and Description based on cataloging of Dr. Peter Wollny.