A patter song is a type of song that is characterized by a moderately fast to very fast tempo with a rapid succession of rhythmic patterns in which each syllable of text corresponds to one note. It is a staple of comic opera and musical theatre, and the lyric of a patter song generally features tongue-twisting rhyming text, with alliterative words and other consonant or vowel sounds that are intended to be entertaining to listen to at rapid speed. The musical accompaniment is lightly orchestrated and fairly simple, to emphasize the text. The song is often intended as a showpiece for a comic character, usually a bass or baritone. The singer should be capable of excellent enunciation, to sing the song to maximum effect.
Patter songs are found in many musicals, and some of the best-known examples include "I Am the Very Model of a Modern Major-General" from The Pirates of Penzance, "Ya Got Trouble" from The Music Man, and "The Elements" by Tom Lehrer. Patter songs are also popular choices for musical theatre auditions, showcases, and concerts.