As many of our readers know, the Baron is a devoted fan of Bach. He went straight from The Grateful Dead to Johann Sebastian without a pause for breath. (Well, that’s an exaggeration, but still…) So when the future Baron was but a wee sprite, he learned enough of Bach to play the organ for our church on Sundays.
This work, Wachet Auf (“Sleepers Wake”, in full Wachet auf, ruft uns die Stimme, BWV 140), was an inevitable part of his Advent repertoire. [Being singularly Irish-disabled in learning foreign languages (a deformation no doubt due to learning too much Latin too soon), I referred to this piece as “Whacked Off” — the closest I could come to pronouncing the German title.]
There are, of course, much longer versions of Wachet Auf, complete with the choral parts. See this one from Amsterdam.