Ma mère et la fête: https://www.youtube.com/watch?v=75ACMA00zX4 - lyrics appear to be in Arabic, and are available on the recording.

Nabwaina owtal el mochwar - can't find it - possibly Arabic

Und was bekam des Soldaten Weib - lyrics by Bertolt Brecht, music by Kurt Weill
https://www.youtube.com/watch?v=FxGla2m6NGg

Lwein Raïhine - don't find anything - possibly Arabic.

Dos yingl vet zey firn - probably Yiddish

A Nign - A nigun or niggun 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", "Lai-Lai-Lai", "Yai-Yai-Yai" or "Ai-Ai-Ai" instead of formal lyrics.



Recordings available for listening here: https://lokeren.bibliotheek.be/en/catalog/june-tabor/we-died-hell-they-called-it-passchendaele/cd/wise-oostvlaanderen_671481#details-tab-issue

"Mainly Norfolk" page on this album: https://mainlynorfolk.info/june.tabor/records/wediedinhell.html