Fernanda Eberstadt is the author of “Little Money Street: In Search of Gypsies and Their Music in the South of France.” She talks with Steve Paulson about the gypsy community of Perpignan. They’ve lived in this southern French city for some 500 years but don’t consider themselves French. They’re musicians, work the markets, and prefer to stick close to home and live off welfare. We also hear excerpts from a commercial recording they made, performing as Tekameli.