The Final Answer
Is Exhibitionism. I'm sure "real fans" will love this!
This refers to Jumpin' Jack Flash (1986). The song Jumpin' Jack Flash is in the key of B-Flat. This is not the song that we're looking for however, we need a more "continental" track.
"Rule Britannia" and "God Save the Queen" are both "continental" and in the soundtrack for Jumpin' Jack Flash but neither is in the key of D Major (thanks Len)
Harold G refers to Harold Godwinson who was killed at the Battle of Hastings in 1066. The harrowing or Harrying of the North occurred in 1069.
Schmieder refers to Wolfgang Schmieder who indexes JS Bach's music. BWV 1066-1069 are his Orchestral Suites. 1068 is the famous "Air on the G String" which was used as the jingle for Hamlet Cigars. With the tobacco publishing ban in the UK they are no longer aired. The key of this song is D Major.
Using the key of
found above, the code is decrypted using a vigenere cipher, yielding:
utm three two u five nine two eight six two five six four seven four eight seven
a six letter function describes this place that links to the baroque master
find a similar link to stanza one though not of bricks and plaster
UTM coordinate in zone 32 at eastings 592862 and northings 5647487 which converts to a WGS84 coordinate of 50.971488°N 10.322607°E - As seen in Len's answer.
This is the location of Bacchaus, the home of Johann Sebastian Bach, the baroque master.
The six letter function of the Bachhaus is a museum.
The Rolling Stones are beginning a museum exhibition in April 2016 called Exhibitionism