This short, expressive work is the first item in Rheinberger's Opus 49 - "Dix Trios pour Orgue".
Score attached, showing my pencil markings. MIDI file attached also.
The lyrical RH needs to sing, the LH propels the work forward with its repeated rhythmic figure, and a solemn legato pedal underpins it all.
For the student - phrasing is of the utmost importance. The LH rhythmic pattern of the first bar is repeated many times. Sometimes the quaver rest on the first beat is there, but other times the last note of the previous bar is tied over, necessitating a quick release to preserve the integrity of the rhythmic phrase. I've pencilled these releases in to make sure I don't miss them.
Phrasing breaks in LH and RH don't coincide. They must occur exactly where they belong.
The pedal is largely legato throughout, calling for some careful pedalling to maintain smoothness. However there are some crucial rests in Bars 21 and 23. It's essential to release the pedal note in each instance when striking the last of three LH quavers above it.
There's room for subtle use of rubato - eg: bars 16-17 leading up to the high F.
RH - Manual I - Doppel Flöte 8, Bourdonalflöte 8, Gambe 8
Manual III - Flauto Travers 8, Viola D'Amore 8, Octave Flöte 4 (swell open)
Manual III coupled to Manual I
LH - Manual II - Rohrflöte 8, Flauto Minor 4
PED - Subbass 16, Bassflöte 8
The surround version of the Wernigerode Ladegast of 1885 is used. Rear ranks are at full volume, and front ranks are at about 70 per cent.