Corona was at Barcelona's Sónar Festival in 2001 to perform with the Nortec Collective when a friend of his insisted he would give his Murcof demo CD to Tony Marley of UK based independent record label The Leaf Label. So he went to meet Tony in a club and gave him the demo. This led to the worldwide vinyl and CD release of Martes, three months after its Mexican CD debut with Static Discos. The pioneering MF Relay track did not become a part of Martes, but was published, also in 2002, by Context Free Media (label by multidisciplinary artist Seth Joshua Horvitz) on the Monotónu 12”. Martes received an almost instant universal praise from well known magazines like "The Wire" UK and consecutively Murcof got to play at festivals like Montreal's Mutek and the next edition of Sónar.