Founder and Director of the Malaysian Choral Eisteddfod (MCE) since 2002

Member of jury for Asia Pacific and World Choir Games

Working Committee for the Asia-Pacific Choral Council, under the auspices of the International Federation of Choral Music (IFCM)

Vice-President of the International Kodály Society

Vice-President of the World Youth and Children Choral Artists’ Association

Vice-President of the Malaysian Association for Music Education

Advisory Board of CHORALSPACE, Germany

Lecturer and choir director at the Faculty of Music at the University of Malaya (UM) and the Malaysian Institute of Art (MIA)

Professor of Instrumental and Vocal Pedagogy at the University Mozarteum Salzburg, Department of Music Pedagogy Innsbruck. 

Founder and director of the Center for Choral Pedagogical Research and Practice at the Haus der Musik in Innsbruck, a branch of the Mozarteum University Salzburg.  Her research focuses on choral pedagogical practice, transcultural and inclusive music-making settings and instrumental and vocal didactic development research. She has taught music, instrumental and vocal pedagogy as well as (children's) choral conducting at various German universities and music colleges. 

As a children's choir conductor and choir teacher, she is an internationally sought-after expert and passes on her expertise in numerous workshops and further training courses in Germany and abroad. She is also a sought-after jury member at choir and choral composition competitions and singing festivals at home and abroad.

Currently conducts various choirs (children, youth, women and mixed choirs) of different genres: the intergenerational choir Chorgemeinschaft ConTakt e.V. Nuremberg, Germany and the transcultural choir groups of the Austrian Grenzklang project in Innsbruck, which she founded and of which she is the artistic, educational and scientific director.

Zechariah Goh graduated with a Diploma in Music from the Nanyang Academy of Fine Arts in 1989.

David and Gunda Hiebert Scholarship award to work on his Master of Piano from University of Kansas

Awarded the prestigious Anthony Cius Prize for outstanding student composer from the University of Kansas for the academic year of 2001 and 2002.

Recipient of the National Arts Council Young Artist Award in 2003. 

He is an active composer whose musical compositions have been performed widely around the world. 

Regular speaker in national and international conferences and competitions such as SICF, BICF, MCI and Tokyo International Choir Competition. 

‘COMPASS Artistic Excellence’ Award in 2013 presented by Composers And Authors Society of Singapore Ltd 

Currently Head of Composition Studies as well as Principal Lecturer at the Department of Music in NAFA, teaching composition, and orchestration

Singapore Symphony Orchestra commissioned and performed many works in 2017, 2022, and 2023. In 2024 he was appointed by the orchestra to mentor six young composers in the orchestra workshop and reading by SSO

Founder and Artistic Director of Studio Cantorum Bandung Choir & Orchestra since 1991 and Bandung Choral Society since 2000

Artistic Director of the Bali International Choir Festival in Denpasar since 2012

Organised The North Sulawesi International Choir Competition 2008 in Manado, Tomohon International Choir Competition 2009 and 2010 in North Sulawesi, Rhapsodie Indonesia Choir Festival (2019), Jakarta World Choir Festival (2019) and International Bandung Choral Festival in collaboration with Parahyangan University Bandung  and the National Narcotics Agency of the Republic of Indonesia. 

Member of the World Choir Council and representative of INTERKULTUR Indonesia since 2006

Artistic Director of The 1st Asian Choir Games, November 2007, in Jakarta, and as a judge in World Choir Games in Xiamen-China 2006, Graz- Austria 2008, Shaozing-China 2010, Cincinnati-USA 2012.

Representative of Indonesia at “One Asia Cultural Ambassador” held by “The Music for One Foundation”, South Korea. 

Conductor and adjudicator in many parts of the world including Taiwan, Japan, Lithuania, South Korea, Venice, Busan, Malaysia and Rimini.

The conductor and choirmaster Vinzenz Weissenburger works with conductors such as Daniel Barenboim, Zubin Mehta and Sir Simon Rattle and conducts orchestras such as the Konzerthausorchester Berlin, the Staatskapelle Berlin and the Lautten Compagney in concerts and operas. 

Outside Europe, he has appeared as a conductor in Argentina, Vietnam, China, Qatar, Malaysia, Singapore, Turkey, Mexico and the USA. 

He has conducted the children's choir of the Staatsoper Unter den Linden Berlin since 2007 and has since developed it to such an extent that it won 1st prize at the German Choir Competition in 2014. 

Vinzenz Weissenburger has been awarded the "Conductor's Prize" several times at competitions, most recently in June 2023 with another 1st prize at the German Choir Competition in Hanover in the A2 category with the Junges Ensemble Berlin.

In September 2015, he founded the youth chamber choir Junges Consortium Berlin, which proved its pure and youthful sound at the International Chamber Choir Competition in Marktoberdorf 2019, among others. In 2017, he took over the direction of the choir of the Junges Ensemble Berlin and has been teaching choral conducting at the Berlin University of the Arts since 2020.

Since 2017, he has been part of the team of lecturers and conductor of the opera gala at the International Masterclass OperOderSpree in Beeskow.

An internationally acclaimed vocal coach, singer, and specialist in functional breathing technique.

She studied opera, concert singing, and vocal pedagogy in Belgrade and Berlin, where she completed her Konzertexamen with distinction and refined her expertise in functional breathing for singers and wind players.

Founder of the Institute for Singing and Breathing Training in Berlin, Brzaković supports singers in role preparation, technique development, and sustainable vocal health.

She is a frequent guest professor and masterclass leader worldwide, with engagements in Singapore, Mexico, Malaysia, Spain, Slovenia, Croatia, Latvia, Lithuania and Germany.

In 2024, she delivered a keynote lecture at the global video conference on singing and breathing hosted by the Conservatorio Nacional de Música in Mexico City.

As artistic director of the international opera festival Oper Oder Spree, and vocal coach at the Staatsoper Berlin’s children's chorus and young soloists, she collaborates closely with conductors such as Vinzenz Weissenburger, Sir Simon Rattle, Zubin Mehta, and Daniel Barenboim.

Her students perform at leading opera houses, including the Staatsoper Berlin, Komische Oper Berlin, Bolshoi Theatre Moscow, the Metropolitan Opera New York, and La Scala Milan.

A passionate advocate for choral music, she has worked with ensembles such as Junges Consortium Berlin, Philharmonischer Chor Ljubljana, Fecorem Spain  and other choirs in Spain, Finland, Sweden, Turkey Mexico etc — always combining artistic expression with technical mastery.

Brzaković is also an examination expert at the International Swiss Opera Studio (Hochschule der Künste Bern/Biel) and a lecturer at the Academy of Music Berlin.