1988- age 15, first guitar classes
1989- 1st group Hilobi: 1 rough cut and 15 concerts
1991- KEU and Galder Arrillaga form Kti.
1993- Psychophony is born: 2 rough cuts (94/97).
1994- KEU joins Etsaiak with whom he has stayed ever since.
1998- Zain acoustic project. Recording published
1999-The idea of Euk is born.
2000- Recording of 7 original tracks at the Musikorta studios in Lekeitio, with Juanito (Ekon), Norton (Lorelei, EHSukarra), Paul (Etsaiak) and the Unanue choir from Ondarroa, among others.