Arabic music filled the air of Laura Elkeslassy’s Moroccan Jewish childhood home in Paris, especially on Fridays before Shabbat. But she didn’t grow up speaking Arabic, so she didn’t understand the words. In New York as an adult, Laura’s search for a wedding song takes her on a rich musical, spiritual and political journey — leading to a bookstore in Jerusalem where she discovers that this work to preserve her culture is a continuation of what her ancestors began. Meklit Hadero, host of “Movement,” a series on music and migration, brings us the story.