As great as J.S. Bach, Buxtehude and others are, I much prefer the old German chorales before the baroque composers got their hands on them and so heavily ornamented them. Accordingly, here below the hymn is sung in Latin by the Schola Cantorum Riga in Latvia. Simple is better.
Here is a version of the same tune beautifully performed by lute and descant viol. (I make no apologies for the busy visuals at the edges!)
Finally here is an intriguing jazz rendition of the hymn as arranged by Christian Steyer for piano and choir, performed a year ago in Berlin: