Nightly live jazz jam session at The Hat Bar Berlin. Every night, the best jazz musicians from Berlin and around the world gather for improvised jam sessions. No special guests, just pure spontaneous jazz. Join the session or simply enjoy the music with a craft cocktail. The bar has a timeless 1940s-50s aesthetic, curated cocktails, and a welcoming atmosphere. Hosted by Jörn Henrich (bass) and Kelvin Sholar (piano).