Finland is justifiably proud of its musical tradition, and sometimes, it seems as if the Finns have taken over the conducting profession completely. Esa-Pekka Salonen, music director of the Los Angeles Philharmonic, is one of the country’s most successful native sons, and lately, he has been captivating America as well. Following the glittering opening night of the Phil’s new Disney Hall, Salonen’s already-considerable profile has been raised, and many are saying that the conductor appears to have graciously evolved from his early years in LA, when he favored obscure composers and difficult modernist works, into a truly well-rounded leader who skillfully balances the demands of his audience, his musicians, and his own soul.