(Photo: André Krieg) To hear John Blow’s “Venus and Adonis” and Henry Purcell’s “Dido and Aeneas” in a single evening is to witness a moment of metamorphosis in English music. Antonius Adamske and his forces shaped a journey, tracing how English musical drama moved from Blow’s miniature masque of graceful restraint, to Purcell’s denser, more dramatically various opera, with persuasive {…}