[1] After hearing her examinations at the Conservatoire de Paris in 1904, Pugno became Boulanger's teacher, collaborator and promotor.
Opéra-Comique had finished casting by July 1914, and choir rehearsals were scheduled to start on 17 August that same year when the outbreak of World War I disrupted all plans.
[6] With many echoes of Pelléas et Mélisande, the story follows the lives and loves of an archeologist, Léonard, his sister Hebé, Alexandre, a colleague, and his wife Anne, amidst the ruins of Mycenae.
[8] The opera was reconstructed from surviving scores by Mauro Bonifacio and had its world premiere at the 2005 Chigiana festival in Siena.
[9] It was performed for the second time in a concert staging by Mia Nerenius, using screens and projections, in March 2020 at the Gothenburg Opera.