Elizabeth Blumenstock: principal second violin (Andrea Guarneri, Cremona, 1660; on loan from the Philharmonia Baroque Orchestra Period Instrument Trust), viola d'amore (anonymous mid-20th Century);
David Daniel Bowes: viola (Richard Duke, London, c. 1780);
Phoebe Carrai: principal cello (Anonymous, Italy, c. 1690);
Maria Ionia Caswell: principal viola (William Old, Falmouth, England, 1895);
Michael DuPree: oboe (H.A. Vas Dias, Decautr, GA, 1995, after T. Stanesby, England, ca. 1700);
Lisa Grodin: violin (Paolo Antonio Testore, Contrada, Larga di Milano, 1736);
Paul Hale: cello (Joseph Grubaugh & Sigrun Seifert, Petaluma, 1988, after Antonio Stradivari, Cremona);
Diane Heffner: chalumeau (Soren Green, 2014, after 18th Century originals);
Eric Hoeprich: principal chalumeau (Eric Hoeprich, after 18th Century originals), recorder (Beha & Gibbons, Boston, after Stanesby, ca. 1720);
Fred Holmgren: trumpet (Fred Holmgren, MA, 2005, after J.L. Ehe III, 1746);
Katherine Kyme: violin (Carlo Antonio Testore, Milan, 1720);
Tyler Lewis: violin (Timothy Johnson, Hewitt, TX, 2009, after Antonio Stradivari, Cremona);
Nicholas McGegan: harpsichord, conductor, music director;
David Morris: viola da gamba (Philip Davis, Quebec, 1979; after Edward Lewis);
Maxine Nemerovski: violin (Timothy Johnson, Bloomington, Indiana, 1999; after A. Stradivari);
Ellie Nishi: viola (Anonymous, Germany, 18th century);
Annalisa Pappano: viola da gamba (Louis Guersan, Paris, 1754);
Farley Pearce: cello (Antonio Garcias Rosius, Mendocino, 1988; after Antonio Stradivari), viola da gamba (Francois Bodart, Belgium, 1989);
Kent Reed: principal timpani (Pete Woods, Aldershot, England, 1996, after 18th Century Continental, hand-tuned);
Marc Schachman: principal oboe (H.A. Vas Dias, Decautr, GA, 2001, after T. Stanesby, England, ca. 1710);
Andrew Schwartz: principal bassoon (Rainer Egger, Basel, 2003, after J.L. Ehe III, 1746);
Charles Sherman: principal harpsichord (John Phillips, Berkeley, 1996, after Giusti, Italy, 17th century);
William Skeen: cello (Anonymous, Italy, c. 1680), viola da gamba (John Pringle, North Carolina, 2001, after W. Addison, London, 1697);
Laurie Young Stevens: violin (Anonymous, Paris, c. 1720);
Noah Strick: violin (Celia Bridges, Cologne, Germany, 1988);
David Tayler: principal theorbo (Andreas von Holst, Munich, 2004; after Magno Tieffenbrucker, Venice, 1610), principal mandolin (Venetian mandolin by Daniel Larson, Duluth, MN, 1996, after various originals, ca. 1700);
John Thiessen: principal trumpet (Rainer Egger, Basel, 2003, after J.L. Ehe III, 1746);
Hanneke van Proosdij: principal recorder (Peter van der Poel, Utrecht, 2005, after Stanesby Jr, London, 1725), principal organ (Winold van der Putten, Finsterwolde, Duluth, MN, 1996, after various originals, ca 1700), harpsichord (Johannes Klinkhamer, Amsterdam, 2000; after B. Cristofori, 1725);
Jolianne von Einem: violin (Rowland Ross, Guilford, England, 1979; after Antonio Stradivari, Cremona);
Lisa Weiss: concertmaster, violin (Anonymous, London; after Testore);
Alicia Yang: violin (Richard Duke, London, 1762);
Kristin Zoernig: principal contrabass (Joseph Wrent, Rotterdam, Netherlands, 1648);
Daniel Zuluaga: theorbo (Lars Jönsson, Dalarö 2009, after Magno Tieffenbrucker, Venice, c.1600);