I think Bach would have leaned a little more toward the conservative side. Certainly not quite as eccentric as Virg was.
After this service I attended at a church in Philly a few years ago, the organist invited everybody up to see and play the organ. He demonstrated it and played Widor's Toccata in F, and he played it way fast. I think he was showing off so much that he made mincemeat out of the Toccata. Even though I had heard it a trillion times, I lost track of the piece, he was playing it so badly.
Anyways, back to the movies....
The movie, Hair (late 70s)....
Huge get-together in Central Park, hippies are doing their thing, getting high, blasting their music. Claude gets his sugar cube (with LSD in it), visions come, he sees his little church back home, he walks in and all of the sudden, he's in a large Gothic church.
No organ seen, but the music, which was this crazy hippy music, played in A major, becomes this magnificent organ music played in A minor then changes key. First thing that came to mind, as far as the organ goes, a 4/90 Aeolian-Skinner. <shrug>