Kirsten Flagstad (1895 – 1962) was a Norwegian opera singer and a highly regarded Wagnerian soprano. She performed at The Bushnell, in Tristan und... Show moreKirsten Flagstad (1895 – 1962) was a Norwegian opera singer and a highly regarded Wagnerian soprano. She performed at The Bushnell, in Tristan und Isolde, in 1936. Show less