Guest Conductors

Dr. Maurice Boyer

Bach at the Sem at Concordia Seminary begins its 22nd season with a new music director. Dr. Maurice Boyer, who guest conducted the February 2014 Bach at the Sem concert, has been appointed to serve as music director for the American Kantorei / Bach at the Sem. Dr. Boyer is associate professor of music at Concordia University Chicago, where he conducts the chamber orchestra and Laudate, a women’s choir, and teaches all levels of Ear Training. Although born in the United States, he began his musical training (piano, voice, and solfège) in Aix-en-Provence, France, where he lived until the age of eighteen. Dr. Boyer’s Bachelor of Music degree in sacred music, with piano as his principal instrument, and Master of Music in choral conducting were earned at Westminster Choir College of Rider University in Princeton, New Jersey, where he also studied theology at Princeton Theological Seminary. He holds a Doctor of Musical Arts in orchestral conducting from the University of Maryland, College Park. His principal conducting teachers have been Joseph Flummerfelt, Kenneth Kiesler, and James Ross.

Dr. Boyer is also artistic director of Aestas Consort of Chicago, the Heritage Chorale of Oak Park, and assistant conductor of the Symphony of Oak Park River Forest. He has served as guest conductor of the Chicago Choral Artists and guest chorus master for Chicago’s Music of the Baroque. Additionally, he has been chorus master of the New Jersey State Opera and director of music at several churches.

Dr. Boyer follows long-time Bach at the Sem music director (1993-2011), the Rev. Robert Bergt, and a series of guest conductors in the past two seasons. Dr. Boyer remains in his position at CUC with released time to devote to his responsibilities in directing the American Kantorei and the Bach at the Sem series.  Interim music director, Dr. Jeral Becker, continues in service as assistant conductor of the Kantorei.


Dr. Martin Dicke

MARTIN DICKE has been Cantor at Trinity Lutheran Church, Peoria, Illinois since 2002. As Cantor he plans worship services, directs several ensembles, serves as primary organist, and oversees the Trinity Concert Series (, Kindermusik® at Trinity ( (an educational/outreach program directed by his wife Marie that enrolls over 100 students), and the Peoria Bach Festival ( Founded in 2003, the Peoria Bach Festival grew quickly from a weekend event to an entire week of concerts and activities, including a program for children. Recent performances include J. S. Bach’s St. Matthew Passion (2010), Easter Oratorio (2011), and Christmas Oratorio (2012). A perpetual student of the choral art, Dr. Dicke has masters and doctoral degrees in choral conducting (University of Minnesota and Iowa respectively) and has studied and sung under Robert Shaw, Weston Noble, Erik Erikson, and most recently Raymond Erickson. Born in Papua New Guinea into a family of pastors and missionaries, Dr. Dicke maintains a high interest in foreign missions. After attending Concordia University, St. Paul, he served churches in both Minnesota and Iowa, taught at a Lutheran high school for fifteen years, founded and directed a select choir in St. Paul/Minneapolis for ten years, and conducted the Chamber Singers of Iowa City for three. He is currently the Dean of the Peoria Chapter of the American Guild of Organists and is preparing his dissertation for publication by A-R Editions, a publisher of editions of early music. His compositions and thoughts on music and worship are available at

Dr. Scott M. Hyslop

SCOTT M. HYSLOP received the DMA in Organ/Church Music at The University of Michigan, where he was a student of Marilyn Mason. He also holds a Master’s Degree in Church Music from Concordia University, River Forest (Chicago), Illinois, and a Bachelor of Music Degree from the University of Wisconsin – River Falls. In addition to his formal education, he has studied with Paul Manz through the Lutheran School of Theology at Chicago and the Paul Manz Institute of Church Music in Chicago. Further musical studies include work in organ performance with Maurice Clerc at the Cathedral of St. Bénigne in Dijon, France, and in composition with Conrad DeJong, Richard Hillert, and James Aikman. Dr. Hyslop is also a Melodious Accord Fellow, having studied choral composition with the noted American composer and arranger, Alice Parker. He has had numerous compositions for voices, organ, and instruments issued by several publishing houses, as well as a biography of Paul Manz, The Journey Was Chosen: The Life and Work of Paul Manz (MorningStar, 2007). Dr. Hyslop has served congregations in Minneapolis, Minnesota; Chicago, Illinois; and Stuart, Florida. He presently serves as the Director of Parish Music at St. Lorenz Lutheran Church in Frankenmuth, Michigan. He is also a member of the Board of Directors for Lutheran Music Program, the organizational sponsor of Lutheran Summer Music. Dr. Hyslop and his family reside in Birch Run, Michigan.

Bálint Karosi

Described as “ferociously talented” by WGBH Classical New England and praised as “a most impressive musical interpreter” by Christoph Wolff, Boston-based Hungarian composer and organist, Bálint Karosi, continues his quest for new avenues of meaningful musical expression through his work in composition, interpretation, and improvisation. He has appeared as a soloist at venues such as the Gewandhaus in Leipzig, the Béla Bartók National concert Hall in Budapest, the Rudolforium in Prague, and the Liszt Academy in Budapest.  He has been featured at major music festivals, including the 2013 Baldwin Wallace Bach Festival, the 2010 International Bach Festival in Leipzig, the 2009 Boston Early Music Festival, and the 2001 Magadino Organ Festival in Switzerland.

As an organist Mr. Karosi has won numerous competitions and prizes, including the 16th International Bach Competition in Leipzig, the Dublin International Organ Competition, the Miami International Competition, the Arthur Poister Organ Competition in Syracuse, and the University of Michigan Organ Improvisation Competition, as well as second prize at the American Guild of Organist’s National Young Artist Competition and the St. Maurice d’Agaune Competition in Switzerland and the Junior Prima Prize for young artists of extraordinary achievement in his native Hungary.

A respected teacher of keyboard improvisation, Mr. Karosi has served on the faculty at Boston University and UMass Boston and is in demand as a private organ and improvisation instructor. In 2012 he was featured in an improvisation duel with renowned Dutch improviser Sietze deVries at the National Concert Hall in Budapest. He also won a prize at the Brno International Improvisation Competition and the Rochette prize at the Conservatoire de Genève.

Mr. Karosi’s many compositions include a commission for the National Concert Hall in Budapest, “Consonances for Organ and Symphony Orchestra,” performed by the Miskolc Symphony Orchestra in 2006, and ‘Orpheus’ Harp,’ a cantata based on a poem by Czeszław Miłosz. His compositions have been published by Wayne Leupold Editions and Concordia Publishing House. Current projects include an organ symphony, a Christmas Oratorio, a work for symphony orchestra, and a cantata for the Bach at the Sem series in St. Louis, MO.

Mr. Karosi frequently guest conducts, including a recent stint with the Yale New Music Ensemble and the Yale Baroque Ensemble.  A committed church musician, Mr. Karosi leads performances of choral and instrumental works at the First Lutheran Church of Boston, where he has built and directed a thriving music program since 2007, when he also founded the yearly “Bach Around the Clock” festival that draws thousands of people for a day-long series of concerts in partnership with WGBH Classical New England and other Boston arts organizations.

Mr. Karosi began his musical studies in his native Hungary as a clarinet player, winning second prize at the 2002 Prague Spring International Clarinet Competition and performing as a soloist with several major European orchestras, including the Orchestre de la Suisse Romande under Fabio Luisi, as well as with Boston Baroque, playing historic clarinet.

Mr. Karosi holds an Artist Diploma and a Master of Music in Historical Performance from the Oberlin Conservatory, two Masters of Music, in clarinet and organ performance, from the Liszt Academy of Music, and two Prix de Virtuosité from the Conservatoire de Geneve. He is pursuing a doctorate in composition at the Yale School of Music, where his composition teachers include David Lang, Aaron Jay Kernis, Christopher Theofanidis and Martin Bresnick.  For further information, see also:

Dr. Andrew Megill

ANDREW MEGILL, recognized as one of the leading choral conductors of his generation, is known for his passionate artistry and unusually wide-ranging repertoire.

A member of the faculty of Westminster Choir College, Dr. Megill also leads two of North America’s finest professional choirs, the Carmel Bach Festival Chorale and the Chorus of the Montreal Symphony Orchestra, as well as The Masterwork Chorus, one of the New York area’s foremost volunteer choirs.

Dr. Megill has collaborated with many leading orchestras, including the American Symphony, Cleveland Orchestra, Dresden Philharmonie, Montreal Symphony, National Symphony, New Jersey Symphony, and New York Philharmonic, for conductors such as Botstein, Boulez, Dutoit, Flummerfelt, Frühbeck de Burgos, Gilbert, Glover, Neeme Järvi, Macal, Masur, Nagano, Rudel and Weil.

Much admired for his performances of Baroque repertoire, Dr. Megill is also artistic director of Fuma Sacra, “one of America’s leading ensembles specializing in Renaissance and Baroque vocal music” whose performances “leave the audience gasping in amazement” (Classical New Jersey). He has collaborated with Baroque specialists, including Ton Koopman and Masaaki Suzuki, and period-instrument ensembles such as the Rebel Baroque Orchestra, Sinfonia New York, Piffaro, Brandywine Baroque, and Tempesta di Mare.

He has previously held appointments at Trinity Church (Wall Street) and the Spoleto Festival USA, evoking praise for producing “the finest opera chorus in the world” (Charleston Post and Courier). Dr. Megill has guest-conducted at the Juilliard Opera Center, the Yale Institute of Sacred Music, the University of Missouri-Kansas City Conservatory of Music, and Emmanuel Church (Boston).

Dr. Dale F. Voelker

DALE F. VOELKER (D.Mus., M.Mus., Northwestern University; BSEd, Central Michigan University) co-founded the Washington Kantorei while head of the music department at Washington Bible College (MD). Since 1996 he has been Professor of Music at Judson University in Elgin, IL, where he has also served as Chairman of the Division of Music. A choral conductor and organist much in demand in the Midwest, he has also taken his choirs to Europe, Brazil, and Jamaica. In addition to his teaching responsibilities, he researches music of the 17th and 18th centuries and has edited a number of works for Concordia and Morningstar Music. Supported by a grant from the German Academic Exchange Service, he traveled to Germany twice during the first half of 2004 to prepare editions of G. P. Telemann’s New Year’s cantatas for publication. Previously, he had received NEH research grants and was given a grant by the German Academic Exchange Service in 1994 to edit unpublished works of Johann Schelle. On several occasions Dr. Voelker has played organ recitals and worked with choral groups in Scandinavia. He studied choral conducting with Wilhelm Ehmann and Frauke Haasemann of the Westphalian Church Music School in Herford, Germany. He previously headed the choral, organ, and music departments at the Universities of Vermont, Middle Tennessee, and Central Florida. (Information from The Washington Kantorei web site)

Dr. Jeffrey S. Wilson

JEFFREY S. WILSON (D.M.A., M.Mus., University of Illinois; B.Mus., Augustana College) is currently professor of music, director of choral activities, and chair of the music department at Greenville College where he teaches conducting, voice, choral techniques and church music. He became the third conductor of the Greenville College Choir in 1996 and has toured with this ensemble throughout the United States, Canada, and Europe. Under his direction the Greenville Choir has performed with the American Kantorei and the Boston Camerata, been invited to sing at multiple Illinois Music Educators Association State Conventions and American Choral Directors Association Central Division Conferences as well as the Calvin Symposium on Worship, and made nine compact disc recordings.

Dr. Wilson studied conducting and choral music with Chet Alwes, Louis Halsey, Donald Morrison, Helmuth Rilling, Fred Stoltzfus, Paul Vermel, and David Willcocks. He also has extensive experience as organist and church musician and has traveled throughout the Midwestern and Northwestern United States as well as Western and Eastern Europe as a concert vocalist and accompanist. Dr. Wilson lived and studied in Hungary while on sabbatical in 2004 and will serve as visiting professor at Hope Africa University in Bujumbura, Burundi during spring semester, 2012.