Ralf Eisenbeiß was born in 1952 in Zeulenroda. After his secondary school examination he studied pedagogy, German philology and musical education. He received his PhD in 1979 at the Pedagogical University of Zwickau. From 1978 to 1981, he studied choir and orchestra conducting at the Franz Liszt Conservatory in Weimar.

Ralf Eisenbeiß was working as the director of the choral department at the Pedagogical University in Zwickau and appointed professor for choir conducting and choral singing in 1987. He was conductor of the renowned Pedagogical University Zwickau Choir. With his choir he performed a wide repertoire of compositions for a cappella choirs and with orchestra, too. Under his direction the choir won numerous prizes at national and international choir competitions.

Ralf Eisenbeiß was lecturer at the central seminar for choral conductors in Berlin and organized numerous workshops himself. He often appears as guest conductor at home and abroad. Since almost 30 years he works as artistic director of INTERKULTUR. Ralf Eisenbeiß is founder of the Int. Robert Schumann Choir Competition in Zwickau and one of the founders of the World Choir Games. Since 1992 he was responsible for more than 150 international competitions of INTERKULTUR in Germany, Italy, Korea, Indonesia, China, Austria, Spain, USA and other countries. Ralf Eisenbeiß is very often invited as a juror in national and other international choir competitions all over the world.

Dang Chau Anh received her master degree in choral conducting and music education at the Vietnam National Academy of Music and Malmo Academy of Music (Sweden).

She is head of conducting subject in Vietnam National Academy of music and a member of the International Society for Music Education. She is the World Choir Council representative of Vietnam.

Dang Chau Anh has worked 20 years as chorus master, artistic director and conductor for children choirs, choir of vocal faculty, musicology- composing- conducting faculty of Vietnam National Academy of music, Vietnam SolArt and Hanoi International School. She is known as a pioneer in the field of choir and music education in Vietnam.

Together with the Vietnam SolArt Choir she attended many events and festivals of Vietnam television as well as in the role of an artistic director, she led the choir to many titles in competition such as: Gold Medal, Audience Prize and Best Performance in International Johannes Brahms Choir Festival in Wernigerode, Germany.For several years she was guest conductor in Children of the World in Harmony and The Voices Without Border in Petoskey, USA.

She is a frequent juror at choir competitions, such as the Vietnam International Choir Competition, in the Philippines, Thailand, Sri Lanka, Indonesia, Malaysia and Spain among others. Dang Chau Anh is also well-known by Vietnam Television audience as M.C, Music expert, Jury of many music programs and competitions on Vietnam Broadcasting System over the whole country.

Dang Chau Anh received her master degree in choral conducting and music education at the Vietnam National Academy of Music and Malmo Academy of Music (Sweden).

She is head of conducting subject in Vietnam National Academy of music and a member of the International Society for Music Education. She is the World Choir Council representative of Vietnam.

Dang Chau Anh has worked 20 years as chorus master, artistic director and conductor for children choirs, choir of vocal faculty, musicology- composing- conducting faculty of Vietnam National Academy of music, Vietnam SolArt and Hanoi International School. She is known as a pioneer in the field of choir and music education in Vietnam.

Together with the Vietnam SolArt Choir she attended many events and festivals of Vietnam television as well as in the role of an artistic director, she led the choir to many titles in competition such as: Gold Medal, Audience Prize and Best Performance in International Johannes Brahms Choir Festival in Wernigerode, Germany.For several years she was guest conductor in Children of the World in Harmony and The Voices Without Border in Petoskey, USA.

She is a frequent juror at choir competitions, such as the Vietnam International Choir Competition, in the Philippines, Thailand, Sri Lanka, Indonesia, Malaysia and Spain among others. Dang Chau Anh is also well-known by Vietnam Television audience as M.C, Music expert, Jury of many music programs and competitions on Vietnam Broadcasting System over the whole country.

Joshibiah de Juan or Sir Butch as he is fondly called by everyone was trained in voice, music composition and choral conducting at the Asian Instiute for Liturgy and Music and University of the Philippines College of Music. He further honed his musical talents under the tutelage of the famous German Conductor Martin Behrman at the Korean National University of the Arts, Seoul, South Korea under a scholarship from the Korean Government. He used to serve as choral conductor and/or music director of the University of the Philippines Church of the Risen Lord, UP Soul Singers, Miriam College Glee Club, St. Joseph College of Quezon City Choir, and the Asian Institute of Liturgy and Music (AILM) Choral.

As a performer, he was a member of the first and only professional choir in the Philippines, the San Miguel Master Chorale. He also used to sing with the Asian Institute for Liturgy and Music Chorale, Philippine Chamber Choir, Ateneo Chamber Singers, the UP Coro Concertino, the UP Singers Harmonics and the Bohol Master Singers.

Currently, Joshibiah de Juan is the conductor of the Tagbilaran City Government Choir, Tagbilaran City Youth Singing Ambassadors and chairman for Tagbilaran City Council for Culture and the Arts.

Johan Rooze studied Piano and Conducting at the Utrecht Conservatory, the Netherlands. Later he went to the U.S. to specialize in Jazz Piano, Singing and Arranging.

He was founder and 23 years Musical Director of the Utrecht University Vocal Group “Dekoor”. They won many prices such as The Dutch Choir Festival, The International Vocal Group Festival and the “Idols for choir” TV show, “Korenslag” 2007 in the Netherlands. He was Conductor of the Utrecht Student Symphonic Choir and Orchestra. With these choirs he toured all over the world. Johan Rooze founded the “Dudok-Ensemble”, an outstanding Project Choir, conducted the monthly Bach Cantatas in Utrecht and was guest conductor with the National Radio Choir.

Furthermore he was Professor for Vocal Jazz, Conducting and Arranging at the Conservatories of Rotterdam and Alkmaar, a member of the board of Musical Advisors for the Dutch Royal Christian Music Association and Artistic Director for the International Choir Festival, Netherlands 2005.

In 2008 he moved to South Korea and teaches Choral Music and Jazz Piano at the Yeongnam University. He is musical director of a new Jazz Choir (Yaenoeul Jazz Singers) and in 2010 he founded the professional Daegu Students Choir. He is a frequent guest conductor with other choirs. Besides his choral work he is very active as a Jazz Pianist and Arranger. He works as Artistic Director for INTERKULTUR and is a frequently asked adjudicator, speaker and workshop-leader internationally.