Claudia Buder, born in Leipzig, educated in Weimar and Essen, plays, teaches and learns with growing enthusiasm.She has been accompanying accordion generations on their way for over 30 years. The prize list of national and international successes is long, but there are also other measures on the yardstick.She taught at the University of Music in Münster from 2009 to 2022. In 2018, she received a professorship at the FRANZ LISZT University of Music in Weimar, continuing the Weimar School of Accordion. The musician is fascinated by the versatility of her instrument and thus explores different artistic genres. She has gained musical experience playing with over 30 ensembles and orchestras, including Ensemble Ascolta, Ensemble Modern and Ensemble Resonanz. She has appeared as a soloist with the Royal Stockholm Philharmonic, the Vienna Philharmonic and the BBC Symphony Orchestra at the Proms and has worked with conductors such as George Alexander Albrecht, Kent Nagano, Andris Nelsons and Jonathan Stockhammer. In collaboration with composers such as Chaya Czernowin, Rebecca Saunders and Annette Schlünz and composers such as Georg Katzer, Ulrich Kreppein and Steffen Schleiermacher, she has premiered numerous compositions. Claudia Buder's heart beats for playing together - with the ensemble klangwerk am bauhaus she realises creative programmes in a wide variety of formations. Life teaches improvisation: Markus Stockhausen inspired her to inventions on the way to intuitive music. En avant!

Mélanie Brégant est actuellement professeur à l'Ecole Supérieure de Musique et de Danse de Lille et au Conservatoire à Rayonnement Départemental de Villeurbanne. Son dernier disque solo, « Accorgueon » est paru chez Klarthe en 2022 et est composé d’oeuvres pour orgue qu’elle a transcrites. Elle forme le duo Bayanaccord avec Philippe Bourlois. Elle est appelée à se produire en solo, musique de chambre et dans diverses formations orchestrales. Elle est membre de l’ensemble Musica Nigella et de l’ensemble In&Out. On a pu l’entendre sur France Musiques, à la Cité de la Musique de Paris, au théâtre du Chatelet, à l’auditorium de Radio France, au CCB de Lisbonne, à l’Opéra de Lyon, et dans divers festivals en France et à l’étranger (Chine et Afrique notamment). Actuellement, elle fait partie de la création de l’opéra « Otages » de Sébastien Rivas, production de l’opéra de Lyon et du Grame. Elle est la première accordéoniste diplômée du Conservatoire National Supérieur de Musique de Paris, où elle a fait ses études avec Max Bonnay, et a été révélation classique de l’Adami en 2009, seule accordéoniste nommée à ce jour.

Céline Rivoal est membre des ensembles musicaux «Nautilis» et «Sillages» à Brest. Ancienne élève de Max Bonnay, Céline Rivoal est titulaire d’un Master de recherche en musique et musicologie pour les œuvres d’accordéon de Sofia Goubaïdulina : « L’accordéon, ce monstre qui respire ». Elle multiplie ses expériences musicales lors de ses concerts en solo, en petites formations ou avec orchestre.

Tant dans sa pratique artistique que pédagogique, elle participe activement au développement du répertoire lié à son instrument grâce à la création, qu’elle soit écrite ou improvisée, tendue toujours entre la recherche sonore et les références culturelles. Elle enseigne l’accordéon et l’improvisation au C.R.R. de Brest Métropole.

Marko Ševarlić made his first contact with the accordion at the age of eight. He completed his elementary music education in Čačak under the tutelage of Aleksandar Popović, and his secondary music education in Kragujevac under the tutelage of Professor Vojin Vasović. He went on to pursue his undergraduate studies in Spain at the Musikene San Sebastian, studying under Professor Iñaki Alberdi, and his master's studies and meisterclasses in Germany at the Hochschule für Musik Würzburg under the guidance of Professor Stefan Hussong. He also specialized in the development of new repertoire in chamber music in France at the CNSMDP in Paris under the tutelage of Professor Kang, and earned a master's degree in chamber music in Germany at the Musikhochschule München under the tutelage of Professor Dirk Momertz.

As a soloist and member of the duo "Jeux d'Anches," he has won numerous awards, including laureate titles at many international competitions for accordion and chamber music.

He has performed at major festivals throughout Europe, as well as in concert halls in Armenia, Russia, Canada, China, Israel, and Japan. He has conducted several seminars for advanced students in Spain, Germany, Switzerland, Croatia, Slovenia, and Serbia.

Marko is also a dedicated pedagogue. His young students in Munich have been laureates of Germany's most important national competitions such as Jugend Musiziert Bundeswettbewerb, Akkordeon-Preis DHV Bundeswettbewerb, as well as international competitions in Pula, Prague, Klingenthal, and the Coupe Mondiale. His students have also received scholarships from various foundations.

Since November 2022, Marko has been a professor at Musikene in San Sebastian (Centro Superior de la Música del País Vasco), working together with Iñaki Alberdi and Miren Iñarga.

Veli Kujala, a Finnish accordionist and composer, graduated from the Sibelius Academy, earning his master's degree in 2004 and a Doctor of Music in 2010. His doctoral thesis focused on new Finnish accordion music, earning him special recognition. Known for his versatility, he has been honored for his achievements as both a composer and performer, receiving many awards in international competitions.

His compositions range from electroacoustic to orchestral works. The 2016 album 'Hyperorganism' earned nominations for Album of the Year and the Classical Emma Award. In 2020, Kujala received the "Composer of the Year in Art Music" award from the Finnish Music Publishers Association. Actively involved in jazz, improvised music, and performing with groups like Gourmet and Sestetto Internazionale, Kujala collaborates with esteemed musicians.

Kujala has performed as a soloist with major orchestras including Avanti!, Britten Sinfonia, Helsinki Philharmonic Orchestra, and Sinfonia Lahti. He has also appeared on the stage of the Metropolitan Opera in their production of Brett Dean’s Hamlet in 2022.

An advocate for contemporary music, Kujala premiered works by notable composers, including ten concertos, four for the microtonal accordion, a co-developed instrument with composer Sampo Haapamäki. Since 2005, he has taught accordion and improvisation at the Sibelius Academy, becoming the head of the accordion class in 2020.

Encouragée par l'influence de sa famille amateur de musique, Christiane Bonnay commence ses études musicales à l'âge de 6 ans à Chambéry, puis à la Musikhoschule d'Hanovre, et à l’Institut Gnessin de Moscou dans la classe de Friedrich Lips.

Elle est lauréate du Prix du Président de la République, et de la Coupe Mondiale d'accordéon.

En 1985, elle obtient le Certificat d’aptitude délivré par le ministère de la Culture.

Elle a enseigné l’accordéon à l'Académie de Musique et de Théâtre, Rainier III de Monaco où elle a créé un atelier tango pendant une quinzaine d’années

Plusieurs élèves de la classe d’accordéon et de l’atelier tango mènent une carrière musicale internationale

Elle a également enseigné au Conservatoire de Musique de Menton.

Elle se produit régulièrement dans diverses formations de Musique de chambre avec des musiciens de l’orchestre philarmonique de Monte-Carlo.

Elle est Présidente de l'Association pour la Promotion et le Développement de l'Accordéon et du Bandonéon et présidente de l’Union Nationale des Accordéonistes de France.