My mother called me about this, she knew I'd want to know. I don't read Spanish well but I had Martropia translated for me years ago, page by page, by a friend in Rosario. Didn't know journalism could sound like that until I read it.
Their story
Juan Carlos Diez was an Argentine journalist, poet and writer whose long career in newspapers and cultural magazines was shaped by a lifelong love of music. He is best known for Martropía, a book built from five years of conversations with the rock musician Luis Alberto Spinetta, and for an…
Juan Carlos Diez was an Argentine journalist, poet and writer whose long career in newspapers and cultural magazines was shaped by a lifelong love of music. He is best known for Martropía, a book built from five years of conversations with the rock musician Luis Alberto Spinetta, and for an interview with the novelist Héctor Tizón that won a prize from Argentina's National Academy of Journalism.
He was born in Buenos Aires on 4 February 1955. Music came before journalism: throughout the 1980s he worked at El Agujerito, a well known record shop in the Galería del Este in central Buenos Aires. He later recalled selling cassettes to Luca Prodan and taking records on consignment from Skay Beilinson, memories he gathered in an article titled "Alta fidelidad".
As a journalist Diez wrote features and interviews for many publications, among them the magazines Nueva, La Maga, Noticias, Luna, Anfibia, Cosmopolitan, Espectador, Rumbos, Temas y Fotos and Contrastes, and the Córdoba newspaper La Voz del Interior. Colleagues saw conversation as the heart of his method, a way of drawing out people and their stories. His interview with Tizón, published in Nueva on 11 June 2000, earned him the First Prize for Creativity from the National Academy of Journalism in 2001, awarded unanimously. He republished it in Anfibia after Tizón's death.
For more than 15 years, until 2016, he worked on Clarín's local supplements, writing small human stories and portraits of neighbourhood characters in Lanús and Avellaneda, south of the capital. Alongside that job he spent years on Martropía, conversaciones con Luis Alberto Spinetta, published in 2006 with cover art by Spinetta himself. A new edition was launched in 2014 at the Bar La Perla on the day Spinetta would have turned 64.
Diez also published a book of poetry, El nacimiento de los peces, in 2007, and produced and presented Pasaje Tupiza, la música que escucho en mi casa, a music programme on the internet station Lalala Radio. He was close to Rodolfo García, drummer of the band Almendra, whose death in 2021 affected him deeply, as did the loss of his mother.
He died on Saturday 17 October 2026, aged 71. Clarín, where he had worked for many years, announced his death and remembered a journalist who put his feelings into every story. The place and cause of death were not made public.
Biography adapted from Clarín (17 October 2026); Conexión Catamarca (17 October 2026); Penguin Libros author biography.
In their own words
“Fue un logro para mi vida el hecho de que él estuviera tan contento (con el libro)”
On Luis Alberto Spinetta's reaction to Martropía, speaking to the news agency Télam at the book's 2014 relaunch, as quoted by Clarín (17 October 2026). Translation: it was an achievement of my life that he was so happy with the book.

Martropia is one of those books you lend out and never get back