Bach's chorale prelude to "Kommt her zu mir spricht Gottes Sohn" is not only present in the Neumeister Sammlung, but is present in Mus. Ms. 30439 as well. I published the version from that last source (http://partitura.org/index.php/johann-michael-bach-kommt-zu-mir-spricht-gottes-sohn/two years ago) and it is (of course) present in the Edition based on that manuscript (http://partitura.org/index.php/choral-preludes-from-mus-ms-30439/). The version in Neumeister's manuscript differs is several little details from the version in Mus Ms 30439. Enough, in my opinion to make a seperate score from it. The differences between the two version can be an inspiration for the performance of all these chorale preludes from Baroque Germany: the notes are probably more an invitation to add one's own variations while playing them than an instruction to play the notes exactly as written.