Gentle Giant: Classical Citation?

I don't know about any classical citations in the music of Gentle Giant unless you count their variation of the British national anthem (of which the composer is unknown; the melody first appeared in a publication called "The Musical Thesaurus" from 1744, albeit in a slightly different version) on their first album. but there are of course a lot of such citations in other prog music.

one of the most cited pieces is Bach's "Toccata and Fugue in D-Minor". here two examples:

my personal favorite citation is of Ravel's "Introduction et allegro pour harpe, flûte, clarinette et quatuor à cordes" ("Introduction and Allegro for Harp, Flute, Clarinet and String Quartet") in "The Three Tongues" by Mother Gong from their album "Fairy Tales" because they do a little improvement of the Ravel original. I will post both for comparison:

the original:

Mother Gong: