What is the Theme for Elgar's Enigma Variations???

Has Elgar’s Enigma Variations ever been solved?
I mean has anybody figured out what the theme is to these variations? I just heard a rumor going around that it is a mirror image of the Schumann Violin Concerto in D minor. Could this be true?

I’m not enough of a scholar of music, but this might give some insight.

http://www.elgar.org/3enigma.htm

Figure this one out with proof and you’ve got your professorship wrapped up at any school of music.:slight_smile: