Vivaldi augmented his reputation as The Red Priest with L'Estro Armonico , Op. 3, a collection of twelve concertos for one, two and four violins. The title of the collection encapsulates the qualities that so entranced Vivaldi's contemporaries. L Estro Armonico , which might be translated as musical rapture , reflects the vitality and freshness of Vivaldi's invention: its rhythmic energy, melodic and harmonic intensity,textural sensuousness,performative brilliance and dramatic flair.