

Concha Jerez (Las Palmas de Gran Canaria, 1941)
José Iges (Madrid, 1951)
Concha Jerez and José Iges are two prominent artists who have collaborated closely since 1989, exploring the intersection of conceptual art, performance, and audiovisual media.
Concha Jerez is a pioneer of conceptual art in Spain. She studied piano at the Royal Conservatory of Music in Madrid and Political Science at the Complutense University of Madrid. Since 1970, she has developed a prolific artistic career focused on the critique of media, censorship, and self-censorship. Her work encompasses installations, performances, and sound art and has been recognized with awards such as the Gold Medal for Merit in Fine Arts (2011), the National Award for Visual Arts (2015), and the Velázquez Award for Plastic Arts (2017).
José Iges is a composer, sound artist, and industrial engineer. He studied composition at the Royal Conservatory of Music in Madrid and has built an extensive career creating works that integrate electroacoustic music, radio art, and sound installations. He was the director of the Ars Sonora program on Radio Clásica (RNE) from 1985 to 2008, promoting the dissemination of sound art and experimental music in Spain.
Together, Jerez and Iges have created numerous works that merge visual and sound elements, exploring interactivity and audience participation. Their collaboration has materialized in projects such as Media Mutaciones, presented at La Tabacalera in Madrid in 2015, where they revisited their joint career and evolution in the use of technological and conceptual media, or in the exhibition Resignifications at the Galician Center for Contemporary Art, revisiting their work 10 years later.
Throughout their collaboration, they have addressed themes such as memory, identity, and communication, using various formats including interactive installations, performances, and radio works. Their joint work has been exhibited at numerous international festivals and exhibitions, establishing them as key figures in the field of interdisciplinary contemporary art.

Diario, 1997-2024.
The work originates from the InterMedia concert "El Diario de Jonás", commissioned by the CDMC for its premiere at the Alicante Festival in 1997. For that occasion, all the scores were prepared, along with forty phrases, and the sequences were mixed.
In 1998, the artists created a first version as an installation at La Gallera (Valencia), within the framework of the ENSEMS festival. Additionally, they produced a radio work titled "Tagebuch", commissioned and produced by WDR in Cologne.
Studio recordings of selected scores from the concert, made to assemble this radio work, were the sole material for that installation, along with phrases recorded by the two authors with their individual memories; these phrases became the starting point for the entire compositional process.
This new version, which is a reinterpretation of the concert in installation format, introduces new materials not included in the original 1998 installation, such as the sequences mixed in 1997 for the concert.
Furthermore, the eight sound sources projecting the work are controlled by an application that, through a computer and sound card, selects in real time, based on pre-established patterns, the sound to be played and the speaker through which it is broadcast. In this way, the process partially retains the mobile and unpredictable nature of the concert, where chance and randomness were also welcomed.
The software for the artwork was developed by sound artist Josep Manuel Berenguer.
This project, produced by the NewArtFoundation, has been made possible thanks to a research program carried out in collaboration with the General Directorate of Innovation and Digital Culture of the Department of Culture of the Generalitat de Catalunya.