Question: What nationality/style of Opera did both Alessandro Scarlatti and Christoph Willibald Gluck compose?
Sentence (from "Christoph Willibald Gluck"): With a series of radical new works in the 1760s, among them "Orfeo ed Euridice" and "Alceste", he broke the stranglehold that Metastasian "opera seria" had enjoyed for much of the century.
Relevant evidence: No