brahms was not known as a church goer but his last publication, op.122, was 8 preludes for organ on german chorales. i think it shows how foundational the chorale was in german music, that brahms turned to that form at the end of his career.
this famous christmas carol, Lo how a rose, is decorated by brahms with a chromatic neighbor on just about every pitch of the original melody. it's very poignant, and lush with harmony.
most people who know Lo how a rose would probably not recognize it in this prelude, and so i followed with two verses of the carol itself.
forgot to mention that Busoni arranged some, but not all, of op.122 for solo piano. not many people play them , they were recorded by Paul Jacobs (the pianist not organist) and Vassily Primakov. enjoy