"Hava Nagila" is one of the first modern Jewish folk songs in the Hebrew language. It went on to become a staple of band performers at Jewish weddings and bar/bat(b'nei) mitzvah celebrations.
The melody is based on a Hassidic Nigun.[1] It was composed in 1918 to celebrate the Balfour Declaration and the British victory over the Ottomans in 1917. It was first performed in a mixed choir concert in Jerusalem.[2]
Abraham Zevi Idelsohn (1882–1938), a professor at Hebrew University, began cataloging all known Jewish music and teaching classes in musical composition; one of his students was a promising cantorial student, Moshe Nathanson, who with the rest of his class was presented by the professor with a slow, melodious, 19th-century chant (niggun or nigun) and assigned to add rhythm and words to fashion a modern Hebrew song. There are competing claims regarding "Hava Nagila"'s composer, with both Idelsohn and Nathanson being suggested.[3][4]
The niggun has been attributed to the Sadigurer Chasidim, who lived in what is now Ukraine.[3] This version has been recreated by Daniel Gil, based on a traditional song collected by Susman Kiselgof.[5] The text was probably refined by Idelsohn.[6] Members of the community began to immigrate to Jerusalem in 1915, and Idelsohn wrote in 1932 that he had been inspired by that melody.
https://www.youtube.com/watch?v=xsXnMJeHoEU