Guillaume 'Alto' L'Hostis

“Guillaume (Alto) is a producer, sound engineer, and composer. He assisted producer Dan Black (2015–2019) and has long worked with composer Jean-Michel Bernard. Trained at Paris studios including Ferber and Obsidienne, he blends indie sensibility with polished, mainstream-ready production. His work has earned millions of streams, and he also composes for film and documentaries for clients including ARTE, Nike, Colors, and Iconoclast.”