Microtub is the world's first microtonal tuba ensemble. The trio was formed in 2010 and consist of Robin Hayward, Peder Simonsen and Martin Taxt. At the heart of their practice is an interest in time, space and frequencies. The music can be described as pensive, surrounding and meditative, with multiple dimensions of sound for the attentive listener to discover. They play on microtonal tubas developed by one of the members, Robin Hayward, in collaboration with the German instrument manufacturer B&S, through which they explore the possibilities that lie in the microtonal tuning system known as Just Intonation.
Microtub has released five albums, and has presented their music at festivals such as Sonic Acts in Amsterdam, Ultima in Oslo, Festival Densites in France and FIMAV in Canada.