Listen to the Concertzender and World of Jazz The Concertzender stands for exceptional, serious music. All pieces are broadcast as a whole (no highlights or excerpts) and our programmes are never interrupted by commercials. The announcements are kept brief, so that as much quality music as possible can be played. The broadcasts consist of a wide variety of surprising programmes, 24 hours a day, using a weekly format. The Concertzender is able to fulfil its artistic mission thanks to (financial) support from the music world: organisations as well as individuals.