Violinist Leonidas Kavakos previews his Boston Symphony Orchestra performance of Prokofiev's Violin Concerto No. 2 and describes the "Willemotte" Stradivarius violin he plays, and Andris Nelsons talks about Strauss's An Alpine Symphony. Also, Alan McLellan talks with members of A Far Cry, and violinist Isabelle Faust and pianist Alexander Melnikov talk with Cathy Fuller about Beethoven's violin sonatas.