Noun
patter song (plural patter songs)
(singing) A type of humorous song sung at a rapid tempo, typical of comic opera, operettas, and musicals.
The G. Schirmer vocal score published in America agreed with the revised Chappell score, except that it also included Robin's Act II recitative and patter song "Henceforth all the crimes" and both versions of the Act II finale. Source: Internet
None of these four recordings include Robin's Act II recitative and patter song. Source: Internet
One such tradition is the patter song exemplified by Gilbert and Sullivan but that has origins in earlier Italian opera. Source: Internet