The first of the compositions contained is the manuscript with Rudolf Löw's opus 1 is a choral prelude to the choral "An Wasserflüssen Babylon". The piece start as the exposition of a fugue with the first phrase of the choral melody as the subject. After the fourth entry of the subject in the bass, the first to phrases of the choral melody are stated in the soprano voice. It is again a nice easy flowing piece of this Swiss composer.