Question: Domenico Trimarchi is an Italian bass-baritone opera singer, in 1970 he made his debut at La Fenice, Venice as Belcore in which comic opera, in two acts by the Italian composer Gaetano Donizetti?
Sentence (from "Tancredi"): The opera made its first appearance at the Teatro La Fenice in Venice on 6 February 1813, and because "Il signor Bruschino" premiered in late January, the composer must have completed "Tancredi" in less than a month.
Relevant evidence: No