Chavez Singletary (above) of Mission Hill was among students from Brighton’s Conservatory Lab Charter School Dudamel Orchestra performing in concert with the Boston Landmarks Orchestra at the Hatch Shell downtown on July 24. Other Mission Hill students who performed in the concert included (not pictured) Kayleen Guzman, Anthony Vega, Brandon Volel and Nahshon Yisrael. (Courtesy Photo)