fantasia

 
Pronunciation: /fanˈteɪzɪə, ˌfantəˈziːə/

noun

  • a musical composition with a free form and often an improvisatory style.
  • a musical composition based on several familiar tunes.
  • a thing composed of a mixture of different forms or styles: the theatre is a kind of Moorish and Egyptian fantasia

Origin:

early 18th century: from Italian, 'fantasy', from Latin phantasia (see fantasy)