Predicate: improvise
Roleset id: improvise.01 , to perform or create without preparation, vncls: 26.7-1 26.4, framnet: Invention
improvise.01: Based on WSJ. Member of Vncls performance-26.7-1 , create-26.4. Updated by Julia.
Roles:
        Arg0: improviser (vnrole: 26.7-1-agent, 26.4-agent)
        Arg1: thing improvised (vnrole: 26.7-1-theme, 26.4-product)
Example: prepositional Arg1
        person: ns,  tense: past,  aspect: ns,  voice: active,  form: full
        [*-1] Keeping the mood light , the two then chanted and chortled their way through some murderous polyrhythms , devised [*] by Mr. Douglas as an alternative to Hindemith 's dry theory-teaching techniques , and then , with Mr. Gomez , soared and improvised on the composer 's tight `` Bebop Etudes . ''
        Arg0: the two
        Argm-tmp: then
        Rel: improvised
        Arg1: on the composer 's tight `` Bebop Etudes