It is the ultimate "theme and variations" form; over 150 composers have written their own interpretations, using the strict chordal framework to showcase improvisational skill.
An improvisation on a 500 year old chord progression. La Folia! Follia
The most iconic "Late Folia" structure is a 16-bar sequence typically in d-minor: Often follows a It is the ultimate "theme and variations" form;
Translates to "madness," "folly," or "empty-headedness" in Italian/Spanish, referring to the frenzied, fast-paced nature of its original dance. " or "empty-headedness" in Italian/Spanish