Winner of international competitions such as the Henryk Wieniawski in Lublin and the one organized by the European Broadcasting Union, Aitzol Iturriagagoitia has been a soloist with orchestras such as the National Orchestra of the Dominican Republic, the Vogtland Philharmonie, the Mittelsächsische Philharmonie, the Basque Youth Orchestra, the Bilbao Symphony Orchestra, and the Euskadi Symphony Orchestra.

He has worked as a soloist under the baton of conductors such as Yehudi Menuhin and Lorin Maazel, and has collaborated with internationally renowned musicians such as Christian Zacharias, Gidon Kremer, Heinz Holliger, and Asier Polo, in addition to developing his chamber music career over many years as first violinist of the Arriaga Quartet. His interpretative approach combines profound technical rigor with sincere expressiveness, and his commitment to chamber music is evident in his constant dedication to collaborative projects.

Following his experience as a professor at the Musikhochschule in Leipzig, he currently holds the chair of violin at the Higher School of Music of the Basque Country (Musikene), where he shares his experience with new generations of violinists.