TENET celebrates its eighth anniversary as one of New York's preeminent vocal ensembles. Artistic Director Jolle Greenleaf has won acclaim for the ensemble's innovative programming, virtuosic singing, and command of repertoire that spans the Middle Ages to the present with a focus on early music. Renowned for their interpretations of Renaissance and Baroque repertoire, TENET features distinguished soloists who shine in one-voice-to-a-part singing and as joined voices in small ensembles. The ensemble sponsors the highly praised Green Mountain Project, giving annual performances of Monteverdi's Vespers of 1610, as well as other vespers that have been newly reconstructed by musical director Scott Metcalfe, including those by Gabrieli, Charpentier, and their contemporaries. A driving force in cultivating the New York City early music community, TENET collaborates regularly with other acclaimed ensembles and organizations, including Dark Horse Consort, Five Boroughs Music Festival, New York Polyphony, and the Sebastians. Highlights from TENET's celebrated New York City concert series include performances of Bach's motets, a three-year cycle of Gesualdo's Tenebrae Responsories, performances of works by Purcell and his contemporaries in celebration of St. Cecilia (music's patron saint), two miniseries of medieval music (The Sounds of Time and The Cycle of Invention), and an original theatrical production that highlights works composed by, for, and about women in 17th-century Italy.

Jolle Greenleaf

Soprano Jolle Greenleaf, artistic director of TENET, has been hailed as a major force in the New York early music scene and a leading voice in the field. She is a sought-after soloist for works such as Bach's St. John Passion, St. Matthew Passion, and Mass in B Minor; Buxtehude's Membra Jesu Nostri; Handel's Messiah and Israel in Egypt; as well as for music by Purcell and most notably Monteverdi. Career highlights include tours to festivals such as Costa Rica's International Music Festival, Festival Casals de Puerto Rico, Cuba's Festival de Música Antigua Esteban Salas, Early Music Vancouver, and performances in Denmark and throughout the US. She has performed as a soloist in Bach's St. Matthew Passion with Helmuth Rilling and in Arvo Pärt's Passio, and also collaborated with John Rutter in his Requiem. She can be heard throughout TENET's entire discography and as a soloist on the Grammy-nominated CD Israel in Egypt with the Trinity Baroque Orchestra and Choir of Trinity Wall Street.

Molly Quinn

Soprano Molly Quinn has appeared as a soloist with many classical and early music ensembles, including Apollo's Fire, Portland Baroque Orchestra, The Knights, Bang on a Can All-Stars, Clarion Music Society, Early Music Vancouver, Carmel Bach Festival, Catacoustic Consort, Staunton Music Festival, American Classical Orchestra, and Trinity Baroque Orchestra. Ms. Quinn is a frequent performer with New York's early music ensemble TENET, and is featured throughout their discography. She has also garnered acclaim for her genre-crossing work in classical, folk, and contemporary music. She appears regularly with Bang on a Can All-Stars in Steel Hammer, a production that has toured extensively and will travel to Abu Dhabi this year. Other highlights this season include solo performances of Bach's Magnificat with Early Music Vancouver, a debut at the Kennedy Center in the title role of Purcell's Dido and Aeneas with the Folger Consort, and as Papagena in Clarion Music Society's production of Die Zauberflöte.

Virginia Warnken Kelsey 

Grammy Award-winning mezzo-soprano Virginia Warnken Kelsey is known for her heartfelt interpretations of the works of Bach, Handel, and their contemporaries. She has been seen on the main stages of Lincoln Center, Carnegie Hall, and Walt Disney Concert Hall, and has been featured as the alto soloist in Handel's Samson, Bach's B-Minor Mass, Handel's Messiah, Mozart's C-Minor Mass, and Bach's St. Matthew Passion at the Spoleto Festival and with Helmuth Rilling at the Casals Festival. Recent highlights include performances with Carmel Bach Society and at the Boston Early Music Festival. Known for her exciting and unique performances of avant-garde 20th- and 21st-century works, she is a founding member of the groundbreaking Grammy-winning alternative ­classical vocal band Roomful of Teeth. In addition to performing, Ms. Warnken Kelsey has taught privately and guest lectured at Yale University, Princeton University, Williams College, Wellesley College, Vassar College, and Dickinson College.

Hank Heijink 

Lutenist Hank Heijink has played all over the world with leading ensembles such as the Amsterdam Baroque Orchestra with Ton Koopman, Orchestre d'Auvergne, Mark Morris Dance Group, and The Wooster Group. As a member of the European Union Baroque Orchestra, he toured extensively throughout Europe, Asia, and Scandinavia. Dr. Heijink has collaborated with Richard Egarr, Nigel North, Christina Pluhar, and other notable European musicians, and taken part in productions of Purcell's Dido and Aeneas, Blow's Venus and Adonis, Cavalli's Didone, and Monteverdi's Il ritorno d'Ulisse in patria, among others. As a regular member of TENET, he can be heard on the ensemble's entire discography and as a soloist on Uno + One: Italia Nostra and The Secret Lover. A native of Eindhoven in the Netherlands, Dr. Heijink holds a performance degree from The Hague's Royal Conservatory, as well as a master's degree in computer science and a doctorate in social sciences. When not playing the lute, he writes software for the iPhone.

Charles Weaver 

Charles Weaver performs on early plucked-string instruments both as a recitalist and accompanist. Chamber music appearances include those with Quicksilver Baroque Ensemble, Early Music New York, Piffaro: The Renaissance Band, The Chamber Music Society of Lincoln Center, Folger Consort, Blue Heron Renaissance Choir, Musica Pacifica, and the Boston Early Music Festival Chamber Ensemble. He is on the faculty of The Juilliard School, where he teaches historically informed performance on plucked instruments. In 2016, Mr. Weaver was the assistant conductor for Juilliard Opera's production of Cavalli's La Calisto. He also works with the New York Continuo Collective, an ensemble of players and singers who explore 17th-century vocal music in semester-length workshop productions. He has taught at the Lute Society of America Summer Workshop, Madison Early Music Festival, and ensemble singing at the Western Wind Workshop. Mr. Weaver is associate director of music at St. Mary's Church in Norwalk, Connecticut, where he specializes in Renaissance polyphony and Gregorian chant.

Emily Walhout 

Emily Walhout  grew up playing the cello and piano, but it was not until college that she discovered her love for Baroque bass lines. While at Oberlin Conservatory, she took up Baroque cello and viola da gamba, thus launching an active career in early music. She was a founding member of both The King's Noyse and La Luna, ensembles consisting of two violins and basso continuo devoted to music of the 17th century. She has played cello, viola da gamba, lirone, and principal bass violin for the Green Mountain Project, Boston Early Music Festival, New York Collegium, Emmanuel Music, Handel and Haydn Society, Seattle Baroque Orchestra, Portland Baroque Orchestra, Trinity Consort (Portland), Les Violons du Roy, Les Boréades de Montréal, and Montreal Baroque Festival. Current chamber ensemble collaborations include Les Délices and Nota Bene Viol Consort. She has toured as a chamber musician throughout North America and Europe, and has recorded extensively with the Boston Camerata, La Luna, and The King's Noyse. 

Jeffrey Grossman 

Keyboardist and conductor Jeffrey Grossman specializes in vital, engaging performances of music of the past through processes that are intensely collaborative and historically informed. This season, Mr. Grossman conducts Bach's St. John Passion from the organ with the Sebastians and TENET, performs as featured harpsichord soloist in Bach's Brandenburg Concertos with the Saint Paul Chamber Orchestra, and conducts Handel's Agrippina with Juilliard Opera and Juilliard415. In addition to serving as artistic director of the acclaimed Baroque ensemble the Sebastians, he also performs this year with the Green Mountain Project, Spire Chamber Ensemble, Quodlibet Ensemble, Music in the Somerset Hills, and Bach Players of Holy Trinity. For the past nine seasons, he has also toured parts of the rural US with artists of the Piatigorsky Foundation, performing outreach concerts intended to bring live classical music to underserved communities. Mr. Grossman can be heard on the Avie, Gothic, Naxos, Albany, Soundspells, Métier, and MSR Classics record labels, and has several new CD recordings
of early music currently in production. A native of Detroit, Michigan, he holds degrees from Harvard College, The Juilliard School, and Carnegie Mellon University.

Dan Rigazzi

Dan Rigazzi has been a stage director at the Metropolitan Opera for 10 seasons. In his time there, he has assisted some of the most influential artists in the American theater: Susan Stroman, Mary Zimmerman, Jack O'Brien, and Bartlett Sher. In addition, Mr. Rigazzi has created original work for opera companies around the US. Favorite projects include The Magic Flute for Arizona Opera, Madama Butterfly and La bohème for Ash Lawn Opera, The Tales of Hoffmann for Wolf Trap Opera, and The Rape of Lucretia for Pittsburgh Opera. Mr. Rigazzi made his international debut in 2014 at Teatro alla Scala, assisting Mary Zimmerman with her production of Lucia di Lammermoor. He is a graduate of the Carnegie Mellon School of Drama and an alumnus of the Drama League Directors Project.