Mozart’s horn concertos give two DSO French horn players, Johanna Yarbrough and David Everson, a moment in the sun during Mozart Festival, which ends Feb. 5. Mozart concerto solos spotlight DSO French horn players Mozart’s horn concertos give two DSO French horn players, Johanna Yarbrough and David Everson, a moment in the sun during Mozart Festival, which ends Feb. 5. Check out this story on detroitnews.com: http://detne.ws/2kcdOcN One of the many cool things about the Detroit Symphony Orchestra’s Mozart Festival, which runs through Feb. 5, is the opportunity it offers orchestra members to shine in the solo spotlight.