Dynamic saxophone conceptualist Matana Roberts continues to focus her formidable creative energy on Coin Coin, her sweeping, multipart narrative epic. Last year she issued the work's second chapter, Mississippi Moonchile—a stirring blend of feisty avant-jazz, songful postbop and operatic chant. For this biweekly series, Roberts workshops new material for the project. Openers include multi-instrumentalist Jessica Pavone (Oct 5), bassist-composer Shayna Dulberger and the Ava Mendoza group (Oct 19) and vocalist Amirtha Kidambi (Nov 2).