Glen Wilson

Fantasia (or fantasy/fantasie) is a classical composition type defined by an improvisatory character, flexible form, and the free development of one or more motives. Unlike strict dance forms or fugues, a fantasia typically privileges invention, dramatic contrast, and rhapsodic flow over predetermined structures. Emerging in the Renaissance with vihuela, lute, viol consort, and keyboard repertories, the fantasia evolved through the Baroque (notably on harpsichord and organ) and was later adopted by Classical and Romantic composers for piano and orchestra. Across eras, common threads include sectional design, sudden textural changes, imitative counterpoint, and exploration of harmony from modal to chromatic languages.