GENEVAN 103 was first published in 1539 in Strasbourg, where Calvin published a small collection of nineteen psalms. Howard Slenk (PHH 3) harmonized the tune in 1985. Psalm 103 is a favorite song in the Dutch Reformed tradition, partially because of its textual content, of course, but also because its Hypo-Mixolydian tune has great merit. The six long lines have satisfying melodic curves and two main rhythmic patterns supplied by lines 1 and 3 (the other lines are repeats of these) . Not all stanzas are equally jubilant, but strong organ accompaniment is helpful throughout.
--Psalter Hymnal Handbook