superb blending of tone, dynamic range, and flexible technique
— Opera News (Cornelia Iredell), December 2011

Voices of Etherea


Due to the busy performing schedules of Etherea's individual members, the group has a rotating roster of the following singers:

Arianne Abela
Awet Andemicael
Estelí Gomez
Allison Holst-Grubbe
Jessica Petrus
Amanda Sidebottom

Derek Greten-Harrison
Kate Maroney
Heather Petrie
Rebekah Westphal

Arianne Abela earned her Master’s degree in choral conducting from Yale School of Music and Yale Institute of Sacred Music, where she studied with Marguerite Brooks, Jeffrey Douma, Simon Carrington, and Masaaki Suzuki.  She is currently the director of choral music at Notre Dame High School in West Haven and the Greater Hartford Academy of Arts (both in Connecticut), and in 2011 was acting choral director at the Westover School for Girls. Arianne also conducts and sings in the choir at Christ Church, New Haven, and performs regularly with the Yale Camerata and Yale Choral Artists.  A native of San Francisco, she sang for many years with the San Francisco Girls Chorus.  Arianne is founder of House of Clouds, an organization dedicated to raising money for charities through musical performance and collaboration.

Proclaimed “light, airy, lyric, and full of musical energy” (Boston Herald), soprano Awet Andemicael is known for her “vivid musical personality” and “quick, clean, and silvery” coloratura (Boston Globe), “honeyed tone” (San Francisco Classical Voice), and “enchanting” (Brandenburger Stadtkurier), “exquisite” (Milwaukee Journal Sentinel), “expressively focused” (Pittsburgh Tribune-Review) and “completely winning” (Boston Phoenix) artistry.  Known especially for her interpretations of Baroque to contemporary sacred music, and her acclaimed rendition of El Trujamán in Manuel de Falla’s El Retablo de Maese Pedro, Awet has performed as a concert and operatic soloist across the United States, Europe, and Japan.  Highlights include appearances with the Bach Collegium Japan under Masaaki Suzuki, the Handel and Haydn Society under Grant Llewellyn, the Boston Symphony under Rafael Frühbeck de Burgos, the Los Angeles Philharmonic under Esa-Pekka Salonen, the San Francisco Symphony under Charles Dutoit, at Carnegie Hall with John Rutter, at the Kennedy Center with Angel Gil-Ordóñez, at Tanglewood and Ravinia, and at the Vancouver and Boston Early Music Fringe Festivals.  Her singing is featured on several recordings and one film (Miss Congeniality), and she has won numerous competitions, including the Metropolitan Opera Competition District Auditions and the Oratorio Society of New York Solo Competition.  She holds degrees from Harvard University, UC Irvine, and Yale University’s Institute of Sacred Music and Divinity School.

Praised for her “nimble voice” and “artistry that belies [her] young years,” (Kansas City Metropolis) soprano Estelí Gomez enjoys a varied career of solo and ensemble singing throughout North America and Europe.  In November 2011 Estelí was awarded first prize in the Canticum Gaudium International Early Music Voice Competition in Poznań, Poland, and extended her time in Europe to perform additional concerts in Munich and The Hague.  After graduating from Yale College in 2008, she earned her Master's degree in voice at McGill, studying with Sanford Sylvan.  While in Montreal, Estelí performed the title role in Handel's Agrippina with Opera McGill, and recorded a JUNO-nominated CD of Spanish Baroque music with Ensemble Caprice.  Estelí has recently performed with Roomful of Teeth, Trinity Wall Street, Clarion Music Society, Conspirare, Seraphic Fire, Santa Fe Desert Chorale, Ensemble 1729, Les Violons du Roy, Ensemble Caprice, and Daniel Taylor's Theater of Early Music.  Recent and upcoming performances include a recital of works created for her by composers at University of Oregon, Eugene, on the Vanguard Series for new and emerging artists; participation in the Victoria Bach Festival as a New Young Artist and featured recitalist; and soprano solos in a performance of Handel's Messiah with the Poznań Boys’ Choir in Poland.

Soprano Allison Holst-Grubbe earned a Bachelor of Music in music education and vocal performance from Ithaca College and conducted graduate studies in music education at the University of Connecticut. In addition to teaching in public schools and her private studio, Allison has performed as a choral musician throughout New England, and as a recitalist at venues such as the New Britain Museum of American Art and the Women Composers Festival of Hartford.  She is currently a section leader and soloist at South Congregational Church in Hartford, Connecticut.  An AmeriCorps alumna, Allison works for Big Brothers Big Sisters.

Recognized for her “lithe and lively” tone (The Berkshire Eagle) and intelligent musicianship, mezzo-soprano Kate Maroney is equally active performing early and contemporary music around the world. She has been heard as a soloist with Bach Vespers, Mark Morris Dance Group, Bard SummerScape, Saint Luke in the Fields, New York Choral Society, Berkshire Bach Society, Fairfield County Chorale, Orchestra Sinfonica Milano di Giuseppe Verdi (international debut), TENET NYC, and has appeared regularly onstage at Carnegie, Avery Fischer, and Alice Tully Halls. She has sung at the Oregon Bach Festival, Mostly Mozart Festival, with Trinity Wall Street, the American Classical Orchestra and New York Virtuoso Singers, and is a member of Yale Choral Artists and Manhattan Concert Chorale. Kate is currently a featured soloist in the world tour of Glass’s Einstein on the Beach and she premiered and recorded Missy Mazzoli’s Song from the Uproar, recently released on New Amsterdam Records. Kate also recorded James Adler’s Reflections upon a September morn for Albany Records. Upcoming projects this season include the world premiere of Marie Incontrera’s Quagmires and the Known Knowns with Brooklyn Art Song Society at Galapagos Art Space and concerts with Vox Vocal Ensemble at The Guggenheim Museum under George Steel. In addition to her D.M.A. from Eastman, Kate holds degrees from Yale and SUNY Purchase.


Contralto Heather Petrie holds a Bachelor of Arts in voice from Bard College and a Master of Music in opera performance from SUNY Purchase Conservatory of Music.  She is an active soloist throughout New York and Connecticut, and performs frequently with choral ensembles in Manhattan, including Musica Sacra, Voices of Ascension, and Sacred Music in a Sacred Space.  She is currently a full-time member of the newly formed Manhattan Concert Chorale.  In addition to Etherea’s debut CD, Ceremony of Carols, Heather’s discography includes Joyful!, a gospel/jazz interpretation of the Psalms by Pete Malinverni, and Sure On This Shining Night, an album of Morten Lauridsen’s choral pieces recorded with Voce at the request of the composer.  On the opera stage, Heather has portrayed the Witch in Hansel and Gretel, Marcellina in Le nozze di Figaro, Flora in La Traviata, Larina in Eugene Onegin, Miss Todd in The Old Maid and the Thief, Baba in The Medium, and Arnalta in L'incoronazione di Poppea.  She has also toured South Korea extensively with her husband, guitarist and producer David Veslocki.

Praised by the New York Times for her “impressive clarity and color” and “velvety suaveness,” American soprano Jessica Petrus most recently performed Gabriel in Haydn’s Die Schöpfung conducted by Masaaki Suzuki.  Other season highlights include the Queen and First Woman in a semi-staged version of Handel’s Solomon, soprano soloist in Handel’s Messiah, and soprano soloist in Bach’s St. Matthew Passion on tour in Italy.  An avid performerand advocate of contemporary music, Jessica world-premiered Robert Kyr’s The Annunciation in December 2011 and performed Steve Reich’s Proverb with direction by the composer.  The Michigan native earned her Bachelor’s degree from the University of Michigan and her Master’s degree at the Yale Institute of Sacred Music.  She lives in Boston, Massachusetts. 

Soprano Amanda Sidebottom is increasingly sought after as a soloist and chamber singer in New York and beyond.  She recently appeared as a soloist with the Mark Morris Dance Group, singing under Morris’s baton in Vivaldi’s Gloria and Bach’s Jesu, meine Freude.  Coming off a well-received recital at the Berkeley Early Music Festival in California, her duo Well-Tuned Words (with lutenist Erik Ryding), recently made its European debut—appearing in concerts in Milan, Paris, and Amsterdam—and also gave recitals closer to home in New York, Connecticut, and Boston.  This season, Amanda will be a featured soloist with Brooklyn Baroque and the period chamber ensemble The Soul’s Delight, as well as at the Cathedral of St. John the Divine’s holiday concert. As a choral singer, Amanda will return to both the Yale Choral Artists (Rachmaninoff’s Vespers) and the Bach Choir at Holy Trinity (Bach’s Magnificat) and made her Alice Tully debut in a 16-voice SSAA chorus singing Brahms and Mendelssohn with the American Classical Orchestra.

Rebekah Westphal, a native of England, came to the United States to study at Bennington College and then attended McGill University in Canada, where she studied musicology.  She was founder and artistic director of the 8-voice ensemble passio, and has sung in vocal ensembles across the USA. She has trained with Peter Phillips and The Tallis Scholars, Roberta Bishop, Kevin Komisaruk and Pierre Masse.  Prior to moving to New Haven, Rebekah was on the faculty at The Music School of the Rhode Island Philharmonic.  Currently she is the Director of International Undergraduate Admissions at Yale University.