The 33rd Diatonic Accordion Fete will be held in Nanterre, Hauts-de-Seine, France on April 11th & 12th, 2026, in partnership with the Mairie de Nanterre and the Hauts-de-Seine department.

The event will feature a Grand Trad Ball on April 11th from 8.30pm at the Hall de la salle des Congrès (Congress Hall) in Nanterre. Music will be provided by the Kelt Duo, Duo Rivaud Lacouchie and Ballsy Swing.

The event will also feature diatonic accordion workshops on both days for beginner level, medium level, advanced level, ensemble music and an initiation course (accordion loans are possible). Tutors include Bill Vétillard, Jean-Luc Larive, Marinette Bonnert, Xavier Le Courtois, Lucas Thébaut, Filippo Gambetta, Toon Van Mierlo and Frédérique Guillaumin.

See posters for details.