Very few artists successfully cross back and forth from jazz to classical and back again: Wynton Marsalis, Benny Goodman, Duke Ellington, Keith Jarrett, Brad Mehldau and Arturo Sandoval come to mind. But now add to the list Dallas vocalist Damon K. Clark. Already acclaimed for his unusual sensitivity, versatility and virtuosity, Clark is as much at home with Thelonius Monk’s “’Round Midnight” as he is with Puccini’s “Nessun Dorma.” The mellifluous tenor minimizes the aesthetic distance between the classical and jazz worlds.