The master cellist’s border-blurring ensemble examines a deceptively single question: Where is home? Joined by heavyweight guests (including Rhiannon Giddens, Bill Frisell, Sarah Jarosz, and Gregory Porter), the multicultural collective addresses the question in a gorgeous tapestry of musical dialects. The combination of original and traditional works range from spare, sweet folk songs (like the spry Appalachian lilt of “Little Birdie” and mournful “Sadia Jana”) to virtuosic new compositions. None is more lovely than “Going Home,” an exquisite interpretation of the lento from Dvorak’s New World Symphony, rendered as a bi-lingual Mandarin-English duet by Abigail Washburn and Wu Tong.