Jermaine Brown Jr. finishes his rendition of Felix Mendelssohn's Then Shall the Righteous Shine Forth at the University of Kentucky's Schmidt Vocal Arts Center. The teacher jumps up, clapping. "That was wonderful — you get the job," he exclaims. It's powerful praise considering the teacher is Irish tenor Ronan Tynan, famous for appearances on PBS and at Yankee Stadium, concert halls around the world and occasions such as President Ronald Reagan's funeral. For two weeks this fall and each fall and spring for the next three years, Tynan will be at UK working with students as the Alltech Visiting Artist in Residence.