Luxembourg’s alternative scene is getting a brand-new playground. On 20 March, 404 FEST  launches its first-ever edition at Melusina Club in Clausen, and it’s aiming straight for the underground. Created as a platform for artists operating outside the mainstream, 404 FEST is all about discovery, connection, and giving space to sounds that don’t always fit neatly into festival boxes. It's all about dark corners, pulsing lights, raw live energy, and a crowd that actually came t