Ernst Friedrich Richter (1808–1879), was a German musical theorist and organist. He first studied music at Zittau, and afterwards at Leipzig, where he attained so high a reputation that in 1843 he was appointed professor of harmony and counterpoint at the conservatorium of music, founded by Mendelssohn. He was elected cantor of Thomasschule zu Leipzig, conducting the Thomanerchor, an office he retained until his death.
Richter's chorale trio's are heavily leaning on baroque/classical structures.
I forgot to mention the registration for the Pedal division in the video:
Subbass 16', Violabass 8'