When Israeli rock musician and singer Dudu Tassa said he wanted to rework and re-popularise his grandfather's repertoire of Iraqi Arabic songs from the 1930s, everyone thought he was crazy. But with the release of El Hajar - the third album in the Dudu Tassa & The Kuwaitis series - he's shown there's real interest in the region for a contemporary take on the music so adored by King Faisal II.