Ongoing Lunchtime music Each Wednesday, a local musician performs during the lunch hour at the Jansen Art Center, 321 Front St., as guests enjoy lunch at the Firehall Cafe. Free. Sylvia Bos plays April 5, Janice Brink April 12, Jacqui Martin April 19 and Lorraine Robinson April 26. On Phoebe Judson Mary Michaelson speaks six…