A somewhat unusual prelude on this famous melody. Telemann is not afraid to use harsh dissonants (e flat against e). Even though they appear only in passing on unaccented parts of the bar, it's quite uncommon for his time.
The melody is played on the pedals, with just the Trompet 8′. The countermelodies are played on the Brustwerk with Gedacht 8′ and Rohrflöt 4′.