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.

Romāns Vanags is a graduate of Emils Darzins' specialized music college and of the Department of Choir and Orchestra Conducting of Jazeps Vitols' Latvian State Conservatory in Riga. He has received a diploma in choir conducting and in music pedagogy and additionally studied orchestra conducting.

In 2003, Vanags received the master's degree in music. His professional work is focused on conducting and pedagogy. He served as the Chief Conductor of the teachers' choir "Vanema" for a long time and since 1990 as the principal Conductor of the Latvian University female choir "Minjona". Furthermore he was Chief Conductor and Artistic Director of Jāzeps Mediņš Music School boys` choir and worked with the Jazeps Medins Music College Symphonic Orchestra. From 1987 thru 1994, Vanags was employed at the Latvian Music Academy in Riga as professor of choir conducting and as the conductor of the academy choir. From 2005 to 2012 Vanags was the head of the Conducting Department.

Vanags has been appointed as one of the chief conductors of the All Latvian Song Celebration and the Youth Song Festival. Since 2004, Vanags is the chairman of the Latvian National Commission for UNESCO on the Latvian Song and Dance Festival, and since 2008, he is also a member of the World Choir Council. In 2008 Romāns Vanags received the highest civil decoration in Latvia – the Three Star Order. Romāns Vanags was a member of the artistic committee of the 8th World Choir Games in Riga and belongs since 2014 to the Artistic Board of INTERKULTUR.

Stathis Giftakis was born in Kalamata in 1967. He studied piano with Dora Bakopoulos and composition with Theodore Antoniou.

Works of him have been successfully performed in Greece and abroad (Turkey, France, Germany, Italy, Canada, Russia, Belgium, U.S.A., Portugal, Austria and Holland) among others by the Athens State Orchestra, the Greek Ensemble of Contemporary Music, the National Opera Ensemble, the Orchestra of Colours, the Kamerata Orchestra, the Arcadian Woodwind Quintet, the ARTéfacts ensemble, the Danubia Winds Orchestra, the Kalamata Symphonic Orchestra and the Kalamata Municipal Youth Orchestra.

Works of him have been selected for and then distinguished in workshops of contemporary music and awarded in several competitions. Many compositions of Stathis Giftakis have been performed or commissioned by festivals such as the “Athens Greek Festival”, the "International Kalamata Music Days" festival, the "Volos Music Theatre Festival", the "Kalamata Dance Festival", the "Greece in Milan" festival, the "Aegena Music Festival", the "Mediterranean Music Festival" in Istanbul and the "Festival of Sacred Music in Patmos". He is a member of the Greek Composers' Union.

Furthermore, Stathis Giftakis was appointed as the Artistic Director of the Municipal Conservatory of Kalamata from 2003 to 2009 and then again since September 2015. At 2017 he was appointed as the Local Artistic Director of the Kalamata International Choir Competition and Festival.

Stathis Giftakis teaches piano and theory at the Municipal Conservatory of Kalamata and is one of the funding members of the "International Kalamata Music Days" festival.

Christoph Mac-Carty was born in 1969 in southern Germany. He studied music at conservatories in Germany, The Netherlands and Switzerland.

For more than 20 years Christoph Mac-Carty has been living and working in the Netherlands both as a pianist and as a choir conductor.

His choir "Dekoor Close Harmony" won first prizes at the "World Choir Games" in the categories Pop (2012 & 2014) Jazz (2010, 2012 & 2014). In 2014, "Dekoor" was invited by the "Rolling Stones" to sing with them at the "Pinkpop" (Netherlands) and "Werchter Classic" (Belgium) Festivals. In 2016 & 2018, "Dekoor" performed at the well known "Sziget Festival" in Hungary.

Christoph Mac-Carty gives masterclasses and workshops for choirs, has been a jury member at choir festivals around Europe and teaches vocal ensembles at the Conservatorium Enschede (Netherlands).

Besides being a conductor he is an in demand jazz pianist in the Netherlands. With his trio "Robinson, Freitag and Caruso" he won the "Dutch Jazz Competition" in 2005 at the North Sea Jazz Festival.

Another part of his artistic work is composing for and performing in music theater productions.

Marit Zetterström is the Manager of Choir Center West in the region of Västra Götaland, Sweden. Choir Centre West is part of the cultural administration Kultur i Väst and their aim is to strengthen and develop the choir scene regionally. This is done by offering courses and consultations, initiating events, and spreading choir research.

Marit Zetterström is a conductor, producer, logonom/speech therapist, guest lecturer and former chair of the Swedish Choral Council. She is often chosen to produce national choral activities, projects, festivals and conferences. As a freelance conductor, consultant and inspirer she has been working all over Sweden. Marit Zetterström has been a teacher, conductor and speech therapist at the well-known education for Musical Artist at Balettakademien in Gothenburg. She was a member of the Academy of Amateur Culture in Sweden for a couple of years. She was also the Organizer of the national choral activities in Sensus study Association 2008-2016.

Marit Zetterström is a member of the local artistic committee planning the 4th European Choir Games in Gothenburg 2019.