Predicate: improvise
Frames file for 'improvise' based on survey of sentences in the WSJ
corpus.
Roleset id: improvise.01 , to perform without preparation, vncls: 26.7-1
Roles:
        Arg0: performer
        Arg1: thing improvised
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