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our people

the choir

Katy Avery, Gabrielle Barkidjija, Nathaniel Barnett, Jessica Beebe, Julie Bishop, Kelly Ann Bixby, Elijah Blaisdell, Karen Blanchard, Steven Bradshaw, Abigail Chapman, Colin Dill, Micah Dingler, Will Doreza,  Robert Eisentrout, Allie Faulkner, Ryan Fleming, Joanna Gates, Dimitri German, Steven Hyder, Michael Jones, Lauren Kelly, Heidi Kurtz, Mark Laseter, Frank Laucerica, Chelsea Lyons, Maren Montalbano, Rebecca Myers, Daniel O'Dea, Rebecca Oehlers, Jack Reeder, James Reese, Alissa Ruth, Kyle Sackett, Daniel Schwartz, Rebecca Siler, Daniel Spratlan, Elisa Sutherland, Daniel Taylor, Diane Walters, Jason Weisinger, Jackson Williams, Shari Alise Wilson


Keyboards — John Grecia
Organist— Scott Dettra
Guest Accompanists— Laura Ward, Mark Livshits, and John Conahan

Conductor— Donald Nally
Assistant Conductor— Kevin Vondrak

joining at the New York Philharmonic for Julia Wolfe’s Fire in my mouth:

Tanisha Anderson, Sarah Batts, Sharon Byrne, Veronica Chapman-Smith, Hai-Ting Chinn, Meg Dudley, Allie Faulkner, Ilana Goldstein, Diana Grabowski, Barbara Hill, Heather Kayan, Michele Kennedy, Kim Leeds, Kate Maroney, Hannah Dixon McConnell, Laura Mercado-Wright, Christine Papania, Ellen Peters, Alexandra Porter, Tiana Sorenson, Elizabeth van Os



Donald Nally is responsible for imagining, programming, commissioning, and conducting at The Crossing.  He is also the director of choral organizations at Northwestern University where he holds the John W. Beattie Chair of Music. Donald has served as chorus master at the Lyric Opera of Chicago, Welsh National Opera, Opera Philadelphia, and for many seasons at the Spoleto Festival in Italy. He has also served as music director of Cincinnati's Vocal Arts Ensemble, chorus master at The Chicago Bach Project, and guest conductor throughout Europe and the United States, most notably with the Grant Park Symphony Chorus, the Philharmonia Chorus (London), the Santa Fe Desert Chorale, and the Latvian State Choir (Riga).

Donald, with The Crossing, was the American Composers Forum 2017 Champion of New Music; he received the 2017 Michael Korn Founders Award from Chorus America.  He is the only conductor to have two ensembles receive the Margaret Hillis Award for Excellence in Choral Music: in 2002 with the Choral Arts Society of Philadelphia and in 2015 with The Crossing. Collaborations have included the Los Angeles Philharmonic, the Philadelphia Museum of Art, the Metropolitan Museum of Art, the Kennedy Center for the Performing Arts, Lincoln Center, Mostly Mozart, the Cleveland Museum of Art, Carnegie Hall, National Sawdust, the Barnes Foundation, Boston’s Isabella Stewart Gardner Museum, the International Contemporary Ensemble (ICE), the American Composers Orchestra, and The Big Sky Conservatory in Montana where The Crossing holds an annual residency. He has collaborated a number of times with artists Allora & Calzadilla, with works at Lisson Gallery (London), The National Gallery (Osaka, Japan), the Cleveland Museum of Art, and the Art Gallery of Alberta (Canada).

In the 2018-19 season he will serve as music director for The Mile Long Opera, a new David Lang work for 1000 voices on the High Line in New York. He is a visiting resident artist at the Park Avenue Armory in Manhattan. 

You can reach Donald at


Jonathan Bradley

Executive Director Jonathan Bradley is responsible for all things organizational and administrative at The Crossing, with a focus on fund-raising and development.  Jonathan served a 10-year long tenure at Carnegie Hall where he built and managed a world-class customer marketing, sales and service program that delivered millions of dollars in revenue and provided key insights into CRM, web design, and marketing initiatives across all customer touchpoints. Most recently, as Chief Marketing and Financial Officer at Primephonic, Jonathan was responsible for launching and developing the marketing strategy, partnerships and US operations for an all-classical HD music streaming service. In this role, he forged value shared partnerships with some of today's foremost new music and classical music ensembles and created an extensive multimedia content marketing program which added value to artist's new releases, back catalog and live appearances. Since 2008 Jonathan has served as President of the Diamond Way Buddhist Center of NYC and Board Member/Executive Officer of Diamond Way Buddhist Centers USA. In these two positions, he helped develop and direct all local programmatic and administrative initiatives, oversaw the operational administration for 30 community centers across the United States, and directed the production of courses and retreats for over 500 people. Jonathan has a BFA from New York University's Tisch School of Arts and an MBA from CUNY Baruch's Zicklin School of Business.

You can reach Jonathan at

Maren Montalbano

Maren Montalbano is oversees the daily operations at The Crossing and also sings with the alto section. A graduate of Tufts University and New England Conservatory of Music, Maren sang in the historic world premiere of John Adams’ Pulitzer Prize-winning work, On the Transmigration of Souls, which was later released into a Grammy Award-winning CD, and has continued to sing in over a dozen commercial recordings with The Crossing, Piffaro, Melodious Accord, and Philadelphia Singers. She released her first solo album, Sea Tangle: Songs from the North, featuring all women composers and performers, in December 2016.   In the past five years, Ms. Montalbano has been a guest artist with Lyric Fest, Choral Arts Philadelphia, Network for New Music, Tempesta di Mare, and Piffaro, the Renaissance Band. In The Crossing's early days, she held the position of General Manager, and is proud to take up the mantle once again as The Crossing enters this exciting stage of growth.

You can reach Maren at


Kevin Vondrak

Kevin Vondrak is responsible for production and marketing at The Crossing. He served most recently as the assistant conductor of the Bienen Contemporary/Early Vocal Ensemble (BCE) and University Singers, conductor for the Chamber Opera Initiative and The Renaissance Singers, and prepared choirs for Donald Nally, Alan Pierson and Albert Pinsonneault while a graduate student at Northwestern University. Also an accomplished pop a cappella musician, Kevin has won awards for his directing, arranging, and recordings with the Washington University Stereotypes and Niles West High School's Echo Effect. Kevin has sung with the St. Louis Symphony Chorus, Madison Choral Project, Mastersingers of Wilmington, and as a Vocal Fellow with the Big Sky Choral Initiative with The Crossing, where he was also a 2017 Conducting Fellow. He sings currently with the choir at St. Thomas' Church, Whitemarsh. Kevin holds a MM in Choral Conducting from Northwestern University's Bienen School of Music, and a BA in Music and Marketing from Washington University in St. Louis.

You can reach Kevin at

john grecia

John Grecia is responsible for holding it all together musically at The Crossing. Our accompanist since 2007, he has an active career as a pianist, organist, conductor and educator. He has served as director of music at St. Mary’s Episcopal Church in Ardmore, PA since January 2000. He also works as a collaborative pianist within the music departments of Saint Joseph’s University, West Chester University, and Overbrook School for the Blind. On the other side of the musical coin, John is a professional pianist, vocalist, songwriter, and frequent performer working in the Philadelphia pop/rock music scene. A debut album of original music entitled Thirteen (John Grecia Band) was released in October 2011. John maintains a busy performing schedule, playing hundreds of shows/performing engagements each year. He holds a B.S. in Music Education and a M.M. in Choral Conducting from West Chester University.

scott dettra

Hailed as a “brilliant organist” (Dallas Morning News) and an “outstanding musician” (The Diapason), Scott Dettra is acclaimed as one of America’s leading concert organists.  Mr. Dettra’s playing is praised for its clarity, rhythmic intensity, and musical elegance, and has been described by The American Organist as “music making of absolute authority and sophisticated expression.”  He combines an active performance schedule with his post as Director of Music and Organist at the Church of the Incarnation in Dallas, where he leads a vibrant music ministry in one the country’s largest Episcopal parishes.  He is also organist for The Crossing, a professional chamber choir based in Philadelphia.  Prior to his appointment in Dallas, he was for five years Organist of Washington National Cathedral.

Mr. Dettra is featured on many compact disc recordings, including Majestus (Loft), recorded at Washington National Cathedral, and Tongues of Fire (Pro Organo), recorded on the 325-rank instrument at West Point’s Cadet Chapel.  In addition to commercial recordings, his performances have been broadcast numerous times on such radio programs as American Public Media’s Pipedreams and Performance Today, the BBC’s Choral Evensong, and The New York Philharmonic This Week.

A native of Wilmington, Delaware, Mr. Dettra began piano study at age three and organ study at age eight as a student of his father, Lee Dettra, holding his first church organist position at the age of nine.  Mr. Dettra holds two degrees from Westminster Choir College in Princeton, where he was a student of Joan Lippincott, and has also studied organ and jazz piano at Manhattan School of Music.  In addition to Washington National Cathedral, he has previously held positions as Associate Music Director of the Washington Bach Consort, Associate Conductor of Washington’s Cathedral Choral Society, Accompanist of the American Boychoir, and church positions at St. Paul’s, K Street in Washington; St. Mark’s, Locust Street in Philadelphia; and Trinity Church, Princeton.  He and his wife, Haley, reside in Dallas with their daughter.