The second fugue from Manuscript Becker III.8.51, owned by the Universitätsbibliothek Leipzig,, is a fugue in c minor. Curious in this fugue is that after the first exposition Marpurg develops a counter subject that is carried through the rest of the fugue and even lends the motivic material for the episode before the final exposition. Other than that oddity it is a well written fugue that is well worth the effort of practising it.
As with the Fuga in B Dur this fugue in c minor is notated in the manuscript on two staves. The voices are however several times quite far apart. Farther apart than I can play with hands alone. Even though the manuscripts states that these fugues could be played on keyboard as well, I think they are really meant as fugues for the organ, with full use of the pedals. The score is therefore renderen with three staves.