López joined Opeth in 1997, after leaving Swedish melodic death metal band Amon Amarth on whose album Once Sent From the Golden Hall he played.
With Opeth, he recorded the albums My Arms, Your Hearse, Still Life, Blackwater Park, Deliverance, Damnation and Ghost Reveries.
For health reasons, López left Opeth permanently on 12 May 2006, to be replaced by Martin Axenrot.
[2] Lopez had not been actively involved with the band since the recording of Ghost Reveries wrapped in the summer of 2005.
[3] On 28 May 2010, it was announced that Martin Lopez, bassist Steve DiGiorgio, singer Joel Ekelöf and guitarist Kim Platbarzdis had joined forces in the band Soen.