sentences:  Train conductors had to become semi-official gallery guides as passengers encountered the performance (and the others that were spread out along the metro line between West Bromwich and Wednesbury).In 2003, Radiator commissioned Broadway Hertz, a sound installation that, through placing microphones around the building allowed audience members to re-mix the building's sounds.Almost simultaneous with the opening of Broadway Hertz was the opening of Of All The People In All The World at Warwick Arts Centre.