Three works inspired in different ways by folk music and the mix of different cultures. Perú Negro (Black Peru), by San Diego Symphony’s Composer-in-Residence Jimmy López, was composed in 2012; Alban Berg’s last completed work, his mystical Violin Concert written in 1935; and Mendelssohn’s “Scottish” Symphony. Conductor Rafael Payare leads the San Diego Symphony Orchestra and violinist Jeff Thayer.