A highlight among the many celebrations and events that pepper the Moroccan calendar are moussems (festivals) that honour marabouts (local saints). They exist on the frontier where Islamic orthodoxy and local custom have met and compromised. Some are no more than an unusually lively market day, but other have taken on regional and even national importance. These festivals are common among the Berbers and are usually held in the summer months. Music and arts festivals, such as those held in Fez and Essaouira in June and Marrakesh in July are particularly popular. But don't overlook smaller rural festivities. During the Festival du Desert, Er-Rachidia hosts performers from across the Sahara, including local Gnaoua band Les Pigeons du Sable. Down the Dadès Valley, garlands come out for Kelaâ M’Gouna’s festival to celebrate the rose harvest.