The largest amount of organ music that has survived from earlier members of Johann Sebastian Bach's family was penned by Johann Michael Bach (1648-1694), a cousin of J.S. Bach's father and also the father of Maria Barbara, J.S. Bach's first wife. It is a collection of chorale preludes spread out over the liturgical year, although it is not possible to state that the collection is as ambitious and complete as that of Johann Sebastian's own (incomplete) Orgelb�chlein. The majority of these chorales can be found in the Neumeister Collection; this also contains a number of Johann Sebastian's early works that bear clear links to compositions by his first father-in-law.