TASSIS CHRISTOYANNIS performs Les Nuits d’été by Berlioz in COLORS a Greek National Opera production 12 November 2023 TASSIS CHRISTOYANNIS performs • Les Nuits d’été by Berlioz • in the triptych • COLORS • a Greek National Opera production with the GNO Ballet. > November 12, 14, 16, 17, 18, 2023 > Sofia Tamvakopoulou, piano 📷 Valeria Isaeva