I have a score that is titled Prelude and is, supposedly, by Anton Diabelli. The key signature is G major and the time signature is 12/8. It is little more than a simple arpeggio exercise: two bars of G, two bars of F#, two bars of F, and two bars of E etc.
I have looked at the set of seven Diabelli Preludes and only one is in G major - none of them are in 12/8.
Anyone have any ideas?
When I was ten, I thought my parents knew everything. When I became twenty, I was convinced they knew nothing. Then, at thirty, I realized I was right when I was ten.