Contents: Introduction. Part One The Sources: Early sources [i]: the WolfenbA¼ttel autographs; Early sources [ii]: the 'Sweelinck' sources; Middle-period sources [i]: the Zellerfeld tablatures; Middle-period sources [ii]; Late sources: LA¼neburg, Pelplin and the 'clavier' anthologies; The dates found in the sources. Part Two Chronology: Toccatas and 'free' imitative pieces; Harpsichord variations and dances; Praeambula and praeludiae; Chorale cycles; Chorale fantasias and Magnificat cycles; Intabulations; Scheidemann's development as a keyboard composer. Part Three Special Studies: More on the DA¼ben tablature and its background; Scheidemann's 'kunstreiche Manuduction auf dem Clavier': fingering in the Scheidemann sources; Ulf Grapenthin: the Catharinen organ during Scheidemann's tenure; Scheidemann in Otterndorf: registration practice; Appendices; Bibliography; Indexes.