Alex Tentor is a guitarist, sound artist, and musicologist specializing in new music both in his solo and chamber music career and in the development of pedagogical approaches, lectures, and masterclasses.

He has collaborated closely with international ensembles such as Shockwave, Schallfeld, Riot Ensemble, Collegium Novum Zürich, Vortex, Kommas, km² duo, UFA sextet, Orchestre de la Suisse Romande, Ensemble Bayona or Vertex Container under conductors, such as Peter Rundel, Ilan Volkov, Nacho de Paz, Leonhard Garms or Jonathan Nott.

An active commissioner of new repertoire for his instrument, he has premiered works by Elena Rykova, Arturo Corrales, Bára Gísladóttir, Morgan Ågren, José María Sánchez Verdú, Jeeyoung Joo, Diego Jiménez Tamame, Aleksandra Bajde, Guillermo Cobo, and Avshalom Ariel among others. 

As a creator, he has frequently co-created repertoire for his instrument and a micro-opera for Gran Teatre del Liceu with Itziar Viloria. His interest in electronics and coding has taken him to offer collaboration on projects for groups such as Frames Percussion, or pianist Carles Marigó. His current research focuses on the interplay between emergent patterns in data, artistic misuses of AI and the performativity of the living body.

He combines his artistic practice with his position as a professor at Escola Superior de Música de Catalunya in Barcelona.