The Dallas Symphony Orchestra’s music director search is in full swing, and Scott Cantrell believes he has a handle on who might be a front-runner and who definitely isn’t: “Philippe Jordan, a Swiss-born 31-year-old with movie-star good looks, made his Dallas debut with richly expressive performances of Brahms and Strauss… having his mug on billboards wouldn’t hurt ticket sales. Claus Peter Flor, the DSO’s principal guest conductor since 1999, keeps molding one stunning performance after another… Yan Pascal Tortelier got finely finished playing from the orchestra, in spite of a strange baton technique.” And the up-and-coming Andrei Boreyko is making his Dallas debut later this year.