oom-pah-pah
• interjection
Used to vocally imitate the rhythmic triple-meter sound of a tuba and accompanying brass instruments in a waltz or beer-hall song.
"The crowd swayed their steins back and forth, singing "oom-pah-pah, oom-pah-pah" in time with the band."
• noun
A rhythmic musical accompaniment in triple time (3/4 meter), consisting of a deep bass note on the first beat followed by two higher chordal beats, characteristic of waltzes and traditional brass bands.
"The steady oom-pah-pah of the tuba and horns echoed across the town square during the autumn celebration."
• adjective
Characterized by or producing a rhythmic triple-time accompaniment played by low brass instruments, typical of traditional German or Austrian band music.
"The festival tent was filled with lively oom-pah-pah music as couples danced the waltz."
Word Nuance & Usage
While "oom-pah" imitates a duple meter (2/4 time) typical of marches and polkas, "oom-pah-pah" specifically represents a triple meter (3/4 time) characteristic of waltzes and German Ländler.