[SUNDAY LISTENING] How Bach wrote hymn arrangements

For a nice bit of Sunday listening today, let's go to the granddaddy master, J.S. Bach I've been studying a bunch of his Chorale Cantatas lately. A Choral Cantata is a cantata based on a hymn tune ("chorale" is Lutheran for "hymn"). A really famous one is "A Mighty Fortress Is Our God." The original hymn was composed by Martin Luther himself in the early 1500s. In each of the 8 movements of this cantata, Bach takes the chorale tune (hymn tune) from Luther's hymn and presents it under...