Musical improvisation - Wikipedia Improvisation is a major part of some types of 20th-century music, such as blues, rock music, jazz, and jazz fusion, in which instrumental performers improvise solos, melody lines and accompaniment parts
improvisatory - Wiktionary, the free dictionary Adjective improvisatory (comparative more improvisatory, superlative most improvisatory) Of, pertaining to, or in the nature of improvisation Synonyms: improvisatorial, improvisational Near-synonyms: impromptu, extempore, extemporaneous