About Spectrum
The Spectrum Singers
Acclaimed Cambridge-based chorus, The Spectrum Singers, is a welcoming community of experienced choral singers committed to performing a wide spectrum of music, presenting relevant, wide-ranging, less-heard, and captivating musical offerings. We take pride in collaborating with Boston’s finest singers, instrumentalists, composers, and poets, as well as programming empowering projects with exceptional international artists.
The Spectrum Singers was founded in 1980 by John W. Ehrlich, who led the ensemble for 44 years until his retirement in 2024. The 2025–2026 season welcomed Music Director Max Holman, ushering in a new era of Spectrum music-making. Read more about Spectrum’s history over the past four decades.
Discover how you can be a part of the future of The Spectrum Singers by auditioning to sing with us, experiencing our live performances, and supporting Spectrum’s dedication to serve our community through our unique programming and transformative music-making.
Max Holman
Music Director
Max Holman is a Boston-based musician recognized for his memorized, clear, and expressive conducting, sensitive collaborative instincts, and “clever” improvisations (Artsong Update). Equally comfortable in front of professional, community, and youth ensembles, his expertise as a vocal coach and choral clinician has transformed seasoned, aging, and changing voices alike.
In addition to serving as the Music Director of The Spectrum Singers, Max is the Assistant Conductor of the Cambridge Chamber Singers and Choral Music and Spanish Teacher at Brimmer and May School. In summer 2026, he will direct the choirs and teach conducting at Grupo Talía’s Encuentro Orquestal Sinfónico in Alba de Tormes, Spain, as well as accompany rehearsals and play continuo organ with The Camberville Somerchoir.
Previous international engagements have taken him to Muscat, Rome, Bologna, Milan, Venice, Madrid, Barcelona, Paris, and Montreal. Stateside he has performed on harpsichord with the Virginia Symphony Orchestra and Norfolk Chamber Consort; sung with the Yale Schola Cantorum, Virginia Chorale, and Music Sacra; and played piano with the Boston Children’s Chorus and Virginia Children’s Chorus. An accomplished ballet accompanist, Max has played at American Repertory Ballet and New Haven Ballet, the latter of which commissioned him to compose and record The Children’s Ballet.
Max received his Bachelor of Music from Rutgers University and his Master of Music from the Yale School of Music and Yale Institute of Sacred Music. When he’s not making music, Max enjoys cooking, cycling, immersing himself in new cultures, forever improving his Spanish, attempting to learn how to dance, making people laugh, and playing fetch with his cat, Estrella. Learn more about Max here.
Heinrich Christensen
Collaborative Pianist
A native of Denmark, Heinrich Christensen came to the US in 1998 and received an Artist Diploma in Organ Performance from the Boston Conservatory, in addition to degrees from conservatories in Denmark and France. He was appointed Music Director of historic Kings Chapel, Boston, in the year 2000, after serving as affiliate organist under the direction of Daniel Pinkham during the final two years of Dr. Pinkham’s 42-year tenure at the church.
Heinrich was a prizewinner at the international organ competitions in Odense and Erfurt and has given solo recitals on four continents; in the US in New York City, Chicago, Washington DC, and throughout New England. He has performed with the Boston Symphony Orchestra in Symphony Hall and at Tanglewood under the batons of Andris Nelsons, JoAnn Falletta, Thomas Adès, among others, and was a featured soloist in the BSO’s Ligeti 100. He has also performed with Boston Ballet, Handel & Haydn Society, and numerous choruses in the greater Boston area.
An avid proponent of contemporary music, he has premiered works by Daniel Pinkham, Carson Cooman, Graham Gordon Ramsay, James Woodman, and several others. He has recorded several organ and choral CDs, and Daniel Pinkham’s works for solo voice and organ with Florestan Recital Project, and most recently Benjamin Britten’s The Burning Fiery Furnace and Curlew River with Enigma Chamber Opera. Heinrich is a past dean of the Boston chapter of the American Guild of Organists, and has given workshops and performed at both regional and national conventions of the AGO.
John W. Ehrlich
Founder and Music Director Emeritus
John W. Ehrlich has been active as a singer and conductor in the Boston and Cambridge areas for more than forty-five years. He is widely admired for his intriguing and adventuresome programming. “From the beginning, it’s been my goal to seek out and perform worthy, important music that is rarely heard,” he says. “As our name suggests, we draw on the whole ‘spectrum’ of master works from the Renaissance to the present day.”
Mr. Ehrlich studied music and conducting while attending the Hartt School of Music, Trinity College, and both Harvard and Boston Universities. His teachers were Robert Shaw, Gregg Smith, G. Wallace Woodworth, Vytautas Marijošius, and Iva Dee Hiatt. Also a singer, Mr. Ehrlich has sung with the Hartford Chamber Choir, Tanglewood Festival Chorus, Cambridge Society for Early Music, John Oliver Chorale, Boston Baroque, and the Emmanuel Church Choir. For eight seasons he was music director of The Master Singers of Worcester.
Mr. Ehrlich retired at the end of the 2023–24 season after leading the group for 44 years.
Singers
Soprano - Anja Castro-Diephouse - Jill Fekete - Valerie Gibson - Kaitlyn Hess Jimenez - Leslie Horst - Tricia Wells Kennedy - Maki Koto - Marissa Maney - Sandra Shepard - Anna Andrews Smith - Kathi Tighe* - Eve Waldron - Reeven Wang Dai
Alto - Mia Bernstein - Christine Bishop - Liz Epstein - Dorrie Freedman - Sara Glidden* - Mara Goldberg - Linda Ingram - Elisabeth Jas - Isabelle Longfellow - Jeannette McLellan - Nicole Meyerson - Macey Owen - Roslyn Pedlar - Kim Soleski Ward
Tenor - Lukas Bane - Paul Dredge - Ian Fox - Keith Ohmart - John Schumacher - Frank Villa* - Maurice Wong
Bass - John Bradshaw - Dan Epstein - Stanley Gibson - Ian Hutchinson - Douglas Latham - Henry Magno - David Meharry* - Seth Pate - Richard Scott - Steven Solomon
*Section leader
Board of Directors
Daniel Epstein (Chair) - Kathryn Tighe (Chorus President) - Douglas N. Latham (Treasurer) - Anna Andrews Smith (Clerk) - Valerie Gibson (Artistic Coordinator) - Max Holman (Music Director) - C. Paul Dredge - Kaitlyn Hess - Christopher M. Keppelman - Richard Scott - Eve Waldron
Mission Statement
The Spectrum Singers’ mission is to build community through collaborative musical excellence by presenting beloved, new, and rarely performed repertoire.
Nondiscrimination Statement
The Spectrum Singers as an organization does not discriminate on the basis of race, sex, sexual orientation, gender identity or expression, religion, creed, disability status, national origin, or ethnicity in any aspect of its programming and administration. Sexual harassment in any form is not tolerated. The Spectrum Singers are committed to improving diversity, equity, inclusion, and access, both in membership and in programming.