“For me, it’s the voices of the mountain,” says the Lebanese musician Wael Koudaih, perhaps better known as Rayess Bek. “The singers always have these amazing, big, beautiful voices. Because they needed to shout in the mountains. It’s a legend of course. An image. But I like this image.” Koudaih is talking all things dabke: The music, the dancing, the rhythm, the history. “You know, they used to put mud ...