His childhood was spent in Viedma and in Luis Beltrán, another town in this north Patagonian province.

He is self-taught as a musician and at the age of 14 began to perform as singer and guitarist in the Viedma bands Marca Registrada and La Bisogna, playing cover versions.

Five years later, having left these bands, he played with the musician Fernando Barilá while continuing to work on his own material.

At the end of 2001 Aristimuño moved to Buenos Aires, where he completed the songs on his first album, Azules Turquesas (2004, Los Años Luz Discos).

Las Crónicas del viento won the Gardel Prize for best alternative rock/pop album of 2010.