Törr, named after the unit of pressure , was formed in 1977 by

Törr, named after the unit of pressure , was formed in 1977 by vocalist and guitarist Ota Hereš and drummer Pavel Kadeřábek, though the original spelling of their name lacked the metal umlaut it sports today. The band began by playing heavy metal, and a year later, they were joined by bass player Filip Moldan. Michael Jakubův soon replaced Kadeřábek on drums and in 1980, they added a second guitarist, Jiří Podzimek, becoming a foursome. Podzimek left a year later, however, and the band returned to playing as a trio until 1983, when David Strnad took on second guitar duties. Around this time, following Motörhead ‘s example, the band added the metal umlaut to their name. In the summer of 1984, David Strnad was replaced by Miroslav Mach and a year later, Bogan Chadt took over on vocal duties. Several more lineup changes took place and in 1986, the band broke up due to other commitments.