Member:
1996-2001 At the Drive-In - guitar, bass, backing vocals  
1998-2001 De Facto - bass  
2001 Omar Rodriguez Lopez & Jeremy Michael Ward - sound effects  
2001-2013 The Mars Volta - guitars, backing vocals  
2004- Omar Rodriguez Lopez - guitar, vocals  
2006- El Grupo Nuevo De Omar Rodriguez Lopez - guitar, keyboards  
2007- Omar Rodriguez Lopez Quintet - guitar  
2007 Omar Rodriguez Lopez & Lydia Lunch - guitar  
2008- Vato Negro - guitar, keyboards  
2009- Omar Rodriguez Lopez Group - guitar  
2010- Omar Rodriguez Lopez & John Frusciante - guitar  
2010- El Trío De Omar Rodriguez Lopez - guitar  
2012- Bosnian Rainbows - guitar, keyboards  
2012 At the Drive-In - guitar, backing vocals  
2014- Kimono Kult - guitar, synths, strings  
2014- ANTEMASQUE - guitar  
Guest musician:
2007 El-P - guitar