When Ken Goodman survived a car wreck at age 4, his parents feared that his nearly severed tongue would never speak again. After a complicated surgery and months of healing, they found he could not only speak but sing. Years later, he nabbed lead roles in musical-theater classics such as Bye Bye Birdie and The Music Man. His lengthy list of performances also includes operas, pageants, and a concert for the Austrian ambassador to the United States. These days, Ken flaunts his melodious vocals at the Vienna Theatre, the 75-seat performance space he owns with his wife, Stephanie. Here, he adds his tuneful spin to renditions of Broadway standards and folk duets with humming radiators. Nestled within the century-old Simon Mendel building, the theater is one of the few structures to survive the fire of 1928 and the man versus building tickle war of 1987.