The Largo and Presto movements from Antonio Vivaldi’s Concerto in F Major for Recorder and Strings, RV 433, with soloist Hanneke van Proosdij, recorder, and the San Francisco Early Music Ensemble Voices of Music. Featuring (left to right) Lisa Grodin, Katherine Kyme, Cynthia Miller Freivogel & Carla Moore, baroque vioins; David Daniel Bowes, baroque viola; William Skeen and Tanya Tomkins, baroque cellos; Farley Pearce, violone; Katherine Heater, harpsichord; David Tayler, archlute, Hanneke van Proosdij, recorder. Live video from the Concerto Barocco Concert, 2011, copresented with the San Francisco Early Music Society (SFEMS). Alto recorder by Adrian Brown, after an instrument by Jacob Denner in the Musikhistorisk Museum, Copenhagen. Vivaldi’s concertos for flute and recorder are some of the most intriguing and virtuosic pieces of the 18th century concerto repertory: Vivaldi creates a hybrid style in which the recorder and flute parts borrow just enough idiomatic material from the violin to create a distinctly original sound, and he combines this sound with highly original–and difficult–music for the the winds. The airy string parts are light enough to let the sound of the recorder shine through, and include just a touch of rhythmic diversity to contrast with the rapid figuration of the solo part.