We completed the biography with the data found in the Bertsozale Elkartea database and the article published in the 35 issue of Bertsolari magazine:

He was born in the Indargarate farmhouse in the Urdaneta district of Aia in 1947 and sang with his brother in the Bertso where he milked cows. At the age of 24, the beech of the door of his home was thrown by a strong south wind and, following the advice of his brother, he dedicated a dozen verses to him. On a visit to the barbershop of Patxi Barbero de Zarautz, Patxi talked about these verses and gave the bertsos to Basarri, who finally published them in the "Nere Bordatxotik" section.

In Aia, four bertsolaris formed a crew of bertsos to get together and sing: MARTIN Rezabal Olaso, Nikolas Zendoia, Joxe Mari Lertxundi and Luis Otamendi.

The first place was in Ordizia in 1972. Since then he has participated for many years in competitions and championships, among others: He won the Artxanberri Awards of Gabiria (semi-finals), Osinalde (1989), Gipuzkoa Championship of 1991, Gipuzkoa Championship of 1995 and Gipuzkoa Inter-Village Championship of 1999.

As a curiosity, he once came as a listener to the Orixe competition, got him on the stage by mistake from a bertsolari and came home with the txapela in his head.

2009 at Gaztetxe de Zarautz

Iñaki Gurrutxaga reported in Karkara de Orio magazine that in 2009 each of them jointly prepared their championship: "Íñigo Manzisidor Mantxi, Uxue Alberdi, Ainhoa Agirreazaldegi and I met to prepare for the Bertsolaris Championship of Euskal Herria, and one day Luis appeared to us, who had been without going from place to place for many years, but who called him the Zarautz Balkans to train in the Copacabq. And there he was with us.

In 2011 he participated in the Udarrangi Prize in Usurbil.

Here you can see their makeshift bertsos.