Comparison: Lover den Herre, den mægtige Konge

Several differences are noted:

Location Difference Comment
throughout note timings and durations1) There were many minor adjustments made in order to better reproduce the music. Usually this consisted of slightly lengthening individual notes, so that they often overlapped. In play, this produces a constant melody line without audible gaps. However if there were repeated notes, a gap was desired so that the notes would remain distinct, so the first was often shortened.
bass clef, throughout shifted octaves Because of the 20-note scale available on the Roller Organ, it was often necessary to shift low “bass” notes up an octave. At the same time, “tenor” notes were sometimes shifted down an octave, to preserve pleasing intervals.
2nd, 8th measure B replaced with C This not only changes the chord, but also the apparent melody line! Was this intentional—or an error?2)
5th, 11th measure D (half note) replaced with A The half note D, if shifted into the necessary range, would have sounded dissonant against the moving quarter notes
18th measure F# omitted Although the F# could have been included by shifting up an octave, it was not acceptable since it would have been above the melody line.
21st measure D added in the treble harmony (alto) A full chord was evidently desired on this last note.
These small differences are not shown in the illustration.
They could have, for instance, used the same chord as the 2nd beat of the first measure.

Todd Augsburger's Roller Organ Website