The Alba Rosa Viëtor Foundation manages the musical legacy of composer Alba Rosa Viëtor. In this context, the foundation has organized the biennial Alba Rosa Viva! Festival and the Alba Rosa Viëtor Composition Competition five times since 2014. In 2025, the foundation will support the ‘Alba Rosa Viëtor / Calefax Composers Competition’. This is part of the Calefax Riet Festival, which will be held from 20 to 23 November at the Muziekgebouw in Amsterdam.