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.

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.

Aleksandar S. Vujić studied piano, conducting and composition at the Music University Belgrad and graduated in 1983. He was working as a professor at the same university from 1974 to 2013.

Aleksandar S. Vujić was awarded the “Zoltan Kodaly“ medal in 1983 and in 1988 a national medal from Israel. In 2014 he received an order from the Serbian president and travelled to the USA in 1987 as a state guest.

In 1987 Aleksandar S. Vujić founded the chamber orchestra „Sinfonietta“ Beograd which recorded 12 CDs until now. Furthermore he conducted several choirs and orchestras in Serbia and was often invited as a juror for events in Serbia, several European countries and Asia.

As a conductor he achieved two gold medals at INTERKULTUR events (World Choir Games Busan 2002 and Budapest 2009).

Aleksandar S. Vujićs choral works have been edited in Germany, USA, Italy, Hungary and Serbia and are being sung in many countries worldwide. „Synkope“ - B. R. Germany is the exclusive publisher of Vujićs choral works.

At the composition competition in Zwickau (1995) he achieved a 1st and 3rd prize and in Trento 1993 a 3rd prize.

Aleksandar S. Vujić is a member of the World Choir Council for Serbia.

Nicol Matt, one of Germany's few new generation conductors, studied Lutheran church music, conducting, vocal coaching, score playing, piano and singing at the music academies of Stuttgart, Trossingen and Strasbourg.

He is the founder and conductor of the Chamber Choir of Europe and was the conductor of the Amadeus Choir. Almost one hundred CDs with recordings of highly demanding vocal, orchestral and instrumental works document his sophistication as an artist. Worldwide sales of over eight million CDs testify to the demand for his highly-regarded and awarded interpretations.

He regularly receives invitations to perform at established concert series such as the Rheingau Music Festival, the SWR Festival, the MDR Musical Summer in Germany, and in many other countries.

As producer Nicol Matt developed and initiated many new projects for the international TV- and music industry, to support choirs and a cappella singing worldwide.

Nicol Matt has active partnerships with contemporary composers from Germany, England and the USA – including Morten Lauridsen, Bob Chilcott, John Rutter, Ola Gjeilo, Hans Schanderl and Frank Zabel.

As lecturer and judge he is regularly invited to international choir competitions, festivals and universities, to teach during workshops and master-classes for conductors and singers around the globe.

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.