After reopening the flood-harrowed Schermerhorn Center with a gala New Year’s Eve performance, the Nashville Symphony must surely be ready to settle back into its home. For its first 2011 concerts, the orchestra hosts ebullient conductor Nicholas McGegan and distinguished piano soloist Robert Levin in a program of works by Beethoven, Mozart and Mendelssohn. McGegan, a return visitor who conducted the NSO’s well-received 2008 Messiah concert, is widely known as a Baroque specialist. He directs San Francisco’s standout period instrument ensemble Philharmonia Baroque, but he is also much sought as a guest conductor across a wide repertoire. Levin, a noted Mozart scholar as well as a first-rate performer, joins in as the soloist in Mozart’s sunny Piano Concerto No. 22. Beethoven’s oft-neglected Symphony No. 4 and Mendelssohn’s concert overture Die schöne Melusine round out an elegant program that should give good play to McGegan’s wonderful blend of historical insight and fun-loving spontaneity.