Outgoing National Symphony music director Leonard Slatkin has been appointed music adviser to the Nashville Symphony. “Slatkin, 61, is also principal guest conductor for both the Royal Philharmonic Orchestra in London and the Los Angeles Philharmonic for its Hollywood Bowl summer series. It is unclear whether he will take another full-time music directorship when he leaves the NSO, although he was widely considered to be in pursuit of the Chicago Symphony Orchestra before the team of Bernard Haitink and Pierre Boulez were given interim directorship.”