A cumulative song is a song with a simple verse structure modified by progressive addition so that each verse is longer than the verse before. Cumulative songs are popular for group singing, in part b
"The Twelve Days of Christmas" is a cumulative song.
"Alouette" is a popular Quebecois children's song, commonly thought to be about plucking the feathers from a lark. Although it is in French, it is well known among speakers of other languages; in this
Cumulative song
…Echad Mi Yodea" "Alouette" "The Austrian Yodeler (Once An Austrian Went Yodeling…