The Moroccan city of Tangiers, which has a long history as a haven of inspiration for American jazz musicians, will host UNESCO's International Jazz Day for the first time on Tuesday.Over the last century, jazz greats such as Randy Weston, Idrees Sulieman and Max Roach all crossed the Atlantic to play and record music in the North African port city, perched on the edge of the Strait of Gibraltar."The city has had a fascinating power of attraction on a wave of intellectuals and musicians," Philippe Lorin, the founder of an annual Tangiers jazz festival, told AFP.