Nathan Schram (back row, third from left) performs with his students from PS 75 in Brooklyn. Stephanie Berger/Getty Images hide caption

itoggle caption Stephanie Berger/Getty Images

Don Telesforo next to a bajo quinto, holding a jarana mixteca. Courtesy of Ruben Luengas hide caption

itoggle caption Courtesy of Ruben Luengas

Glen David Andrews, the New Orleans trombonist and singer and regular on HBO's Treme, surfs the crowd at the 2010 New Orleans Jazz & Heritage Festival. Douglas Mason/Getty Images hide caption

itoggle caption Douglas Mason/Getty Images