Harmonic Progression is a not-for-profit organisation dedicated to sustainability in classical music. Based in Switzerland and working internationally, we aim to inspire the entire classical music community – from institutions and musicians to audiences – to embrace environmental action.
Through our projects and collaborative work, we aim to turn intentions into meaningful outcomes. From recycling used strings and distributing them to musicians in need, to leading eco-workshops at renowned international institutions, we address the challenges of sustainability in the classical music sector.
Discover our projects here!

Join us as we work towards a more sustainable future for music and the planet.