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.

Friedrich Lessky was born in 1934. After high school he got a degree in musical pedagogy, choir conducting and organ at the Vienna Academy for Music and Figurative Arts, as well as in history and musicology at Vienna University. From 1964 to 2000, he was professor and later director of the music school Wiener Musikgymnasium and assistant teacher at the department of music and figurative arts at the Vienna University. In 1957 with a students’ choir from Vienna, he won a first prize at the international choir competition in Arezzo. Friedrich Lessky founded in 1968 the Chamber Choir of the Vienna Music School (today: Friedrich-Lessky-Choir). With this choir he has obtained outstanding placings in many international competitions and has made more than 40 concert tours travelling to almost all European countries as well as to North and South America. For ten years he has been artistic director of the well known Wiener Singakademie. His productions have been broadcasted in various radio and TV programmes as well as in other registrations. Friedrich Lessky is also founder and artistic director of the Viennese international choir competition "Franz Schubert", and he is vice president of the Schubert-Gesellschaft Wien-Lichtental. Friedrich Lessky is regularly invited to be a member of the juries at international choir competitions. Due to his activity in the field of choir music, Friedrich Lessky has been awarded important prizes, among others the medal of merit of the Austrian Republic Großes Ehrenzeichen für Verdienste um die Republik Österreich.

Josef Habringer, Master of Theology (studies in Linz and Salzburg), has gained his musical education at the Mozarteum in Salzburg (member of the ORF Choir Salzburg from 1974-1978), at the Bruckner Conservatory in Linz (Music Education) and at the University of Vienna (song and oratorio). In 1972 he founded the vocal sextet Voices and has been conducting this group ever since. In 1978 he founded a choir at the Catholic University Community (KHG Choir) which has now about 70 singers and is performing since 1992 as Collegium Vocale Linz.

Josef Habringer has been working as a Cathedral Cantor at the Mariendom Linz since 2006 and from 1992-2014 as a referent for church music at the Diocese of Linz. He taught at the Pedagogical Academy of the diocese Linz from 1989-2005 and at the diocesan conservatory for sacred music from 1992-2014. Furthermore he gives lessons in and holds lectures about vocal training, solo singing and choir conducting e.g. at the choir Academy Krems, Vocal Week in Melk, Austrian Week for Sacred Music, Week of Choral Singing of the diocesan Linz, Choral Week Laudate Dominuma and the Sacred Choral Music Week in St. Gallen and Einsiedeln. Josef Habringer also performs as a tenor soloist regarding sacred music. In 2013 he was awarded the Gold Medal for Services to Upper Austria and in 2014 the Orlando di Lasso Medal.

Jakub Neske is an award-winning composer and conductor mostly known for his choral works, including "Mironczarnia" and "Deus ex machina". His music has been commissioned and performed more than 500 times by ensembles around the world. As a guest conductor and workshop conductor he worked with a number of choirs across Europe.

He is a laureate of Maestro Ennio Morricone award at the International Competition of Choral Composition (Italy), ACDA ChoralNet Silver Platter Award for choral repertoire of outstanding quality (USA), Samuel Stokes' Call for Piano Pieces (USA), "Play Your Concert at Wembley" (Great Britain), Diploma of the Minister of Culture (Poland) and many others.

He graduaded with distinction from art education in music arts with conducting module at the Grażyna and Kiejstut Bacewicz Academy of Music in Lodz. He also completed master's studies in composition at the Fryderyk Chopin University of Music in Warsaw. Currently, he is a PhD student at Fryderyk Chopin University of Music in Warsaw.

Josep Prats was born in Barcelona in 1953. He studied singing, musicology, harmony, counterpoint, fugue... at Badalona and Barcelona conservatories, and conducting with A. Ros Marbà. He has been pupile in choral conducting of Jordi Casas, Erwin List, Laszlo Heltay, Pierre Cao and others.

He has been chairman of the Catalan Federation of Choirs’s Music Committee (FCEC), and member of the Europa Cantat Permanent Music Committee. He has taught Choral Singing and Chamber Music in the ‘Conservatori Superior de Música del Liceu’ and ‘Institut del Teatre’. At present he is conducting Coral Cantiga (Barcelona), Cor Ciutat de Tarragona (Tarragona) and he is director of children music program called ‘Cantània’ produced by ‘Auditori Nacional de Catalunya’. He has been Guest Conductor of the Spanish Radio and Television Choir (RTVE); very often he conducts everywhere different profesional and amateur choirs as a guest.

He has been invited to conduct by different national and international choir festivals, he is often asked to be jury member of different international choir competitions and regularly gives choral conducting courses in Spain, Portugal, France and South America.