Instrumental Duet Instrumental Duet,Organ,Piano - Digital Download SKU: A0.809519 Composed by Michael Praetorius. Arranged by Marilyn Thompson. Christian,Christmas,Sacred. Score and parts. 10 pages. Marilyn Thompson #6086833. Published by Marilyn Thompson (A0.809519). A  creative, expressive duet for piano and organ on this beloved German Advent hymn. Moderate Difficulty. A Solo Piano version as well as an Octavo are available on separate posts.  The composer also has additional Flute, Horn  and String parts if desired. Please contact mariilyn@ www.mtmusicministries.com  ASCAP for further information.