Regent’s Park annual klezmer celebration had the crowds rocking to the sounds of the shtetl.

But one visitor could not believe his ears when he heard a presenter announce a piece of music this year by Gilad Atzmon. The notorious Israeli jazz musician and self-styled “self-hating” Jew did not actually perform at Klezmer in the Park: one of his tracks was broadcast between live acts.

After a complaint, a spokesman for the event’s organisers, the Jewish Music Institute, said they had not been aware of Atzmon’s views but “I’m sure we would not have played it if we had.”