Spanish-Catalan viol player Jordi Savall returns with a program exploring 17th-century Sephardic and Armenian musical traditions, fruits of the Ottoman empire melting pot of Turkish, Greek, Armenian, and Jewish culture. The selections, varying from delicate and moody to bright and energetic, are drawn from The Book of the Science of Music, a compilation by the Ottoman musician and composer Dimitrie Cantemir. Savall's Hespèrion XXI ensemble is joined by guests from Turkey, Armenia, Greece, and Morocco, on oud, ney, duduk, kanun, and santur.