Conversation so far:
When did Ezio Pinza start performing in operas?
Pinza's Metropolitan Opera debut occurred in November 1926 in Spontini's La vestale, with famed American soprano Rosa Ponselle in the title role.
Was Ezio Pinza immediately successful?

Question: Has he worked with anyone notable?
Self-contained rewrite: Has Ezio Pinza worked with anyone notable?