La Folía (Spanish), or Follies (English), also known as folies d'Espagne (French), La Follia (Italian), and Folia (Portuguese), is one of the oldest remembered European musical themes, or primary material, generally melodic, of a composition, on record. The theme exists in two versions, referred to as early and late folias, the earlier being faster.
^ abSimpson, Christopher (1665) cited in Esses, Maurice (1992). Dance and instrumental diferencias in Spain during the 17th and early 18th centuries. Vol. 1. Stuyvesant, NY: Pendragon Press. p. 572. ISBN0945193084.