The jazz bell
Research news Researchers at Technical University of Munich (TUM) are using computer simulations to investigate how and why bells ring. The virtual models result in new bell designs that generate highly unusual harmonies - for example a jazzy A9 chord. Now the world's first jazz bell has been cast. The high art of bell casting requires a wealth of experience: In order for the finished bell to create a harmonious sound, the casting mold has to have the exactly right shape, narrow at the top, wide at the bottom, bulges in just the right places.