Question: What was the name of the period instrument ensemble that was formed in the 1950s by the conductor with whom Elisabeth Kulman recorded Beethoven's "Missa solemnis"?
Sentence (from "April Evans"): April Evans is an American soprano who has sung with the Opera Orchestra of New York where she sang Irene in Wagner's "Rienzi" in 1983 and with the Teater Kiel in Germany where she was the soprano soloist in Beethoven's "Missa solemnis" (1986) and 's "Thomas-Evangelium" (1987).
Relevant evidence: No