This article is about a type of Jewish religious music, Nigun. For the main article on religious Jewish music, see Religious Jewish music.A nigun (Hebrew: ניגון‎ meaning "tune" or "melody", pl. nigunim) or niggun (pl. niggunim) is a form of Jewish religious song or tune sung by groups. It is vocal music, often with repetitive sounds such as "bim-bim-bam" or "ai-ai-ai!" instead of formal lyrics.