Maria Venuti, Jeffrey Gall, David Gordon and William Sharp are among the soloists; Bruno Weil is the music director.
The next Aston Magna program on July 26 will feature the voice of Jeffrey Gall in "The Art of the Countertenor."
Gloria Banditelli, a mezzo-soprano, sang Dorimene, with Jeffrey Gall, a countertenor, taking the other castrato part of Don Garzia, Dorimene's beloved.
Still, last season Mr. Asawa sang one performance of Britten's "Death in Venice" at the Met (Jeffrey Gall sang the others), and there is talk of other roles.
Jeffrey Gall, a leading countertenor, delivered David's lines with typical panache, spinning out added ornaments easily and gracefully.
The MSU Opera Workshop was directed and conducted by Jeffrey Gall, featuring videoscenography by Cila MacDowell.
Daniel Stepner, a violinist and the artistic director, leads the small orchestra, and the singers include Jane Bryden and Jeffrey Gall.
Jeffrey Gall, a countertenor, also excelled in the brief alto cantata "Wiederstehe doch der Sunde" ("Stand steadfast against transgression").
The vocal soloists are Sharon Baker and Dominique Labelle, sopranos; Jeffrey Gall, countertenor, and William Hite, tenor.
The cast includes Kathleen Battle, Tatiana Troyanos, Martine Dupuy, Sarah Walker and Jeffrey Gall, a countertenor also making his Met debut.