San Francisco-based jazz vocalist and songwriter Jacqui Naylor continues her winter tour with a concert on Water Island. She returns to the island following her gigs at the famed Blue Note New York and sold-out shows at SFJAZZ Center on a tour that has included the United States, Italy, Portugal, Germany and Canada. The tour is in support of her recent ninth release “Q&A,” which features multi-instrumentalist and composer Art Khu.