Members of the choir of Ernesta Vignera music school perform during the Grand Prix of Nations 2017 and the 3rd European Choir Games in Riga, Latvia, on July 21, 2017. The event is held from July 16 to July 23 here in Riga. More than 150 choirs participated in singing competitions in ten different categories during the event. (Xinhua/Janis)
