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Musicians of the Switzerland's string quartet "Quatuor Sine Nomine" arrive on stage before performing a concert at dawn on the shore of the Lake Geneva during the music festival "Fete de la Musique" at the "Jetee de la Compagnie" in Lausanne, Switzerland, Sunday, June 21, 2020. To prevent a second wave of Covid-19 infections (coronavirus), the concert takes place with a maximum of 300 spectators. (KEYSTONE/Laurent Gillieron)