0 Floor

entry: General Conditions

Tonnetz 09-B (2010)

António de Sousa Dias


Between the idea of the series and the work in construction, the installation Tonnetz09-B reveals the inquiry carried out over the past few years by António de Sousa Dias into the convergence between music and the image.

Based on the concept of the tone network (Tonnetz in German), the work reinterprets several themes that were essential to the birth of contemporary art, such as the relationship between sound attributes (pitch, timbre, sound source movement) and visual attributes (form, texture, colour, luminosity) or the dilution of harmonic and tonal paradigms. In this respect, besides its theoretical links to Euler and Riemann, Tonnetz09-B can evoke the work of composers such as Scriabin and Schoenberg, or the painting of Kandinsky, linking these historical references to an updated reflection on the synesthetic and technological dimension of the work of art in interactive contexts.
Conceived as a navigable musical space, the installation configures an immersive environment structured via two intercommunicating systems – a sound-generating motor and a motor that creates images – which are in a continuous state of interference. These two interdependent processes mark out an abstract and diffuse field that encourages a subjective reading by the spectator, who, in an extreme case, could reject the chance to interact with the work, choosing to allow himself to be led by the programmed environment instead of conditioning the musical and visual modelling. In any situation, identical actions can give rise to different effects, which links the idea of unpredictability to the continuously mutating nature of space. The unlikelihood of repetition thereby dispels the factor of recognition that Adorno considered to be essential to musical perception and guarantees the uniqueness of each experience. Perhaps for this reason, the artist designates it as a space of freedom.

Helena Barranha 

+ Info

On Exhibition

Drawing and watercolor courses

Drawing and watercolor courses taught by Nelson Ferreira

A Brasileira do Chiado

Café Museu 1925-1971

Curatorship: Maria de Aires Silveira, Raquel Henriques da Silva
The Café Museu da Brasileira on display at the MNAC
Temporary Exhibition

The Pathway to the Light as It Goes along the Light

Curated by João Biscainho, the inaugural exhibition of the new Millennium bcp Gallery presents a selection of works in a dialogue between the MNAC and Millennium bcp collections, and other national and international collections.
Colective Exhibition

Cycle “Women Painters in the Ibero-American World” 2021-2022

Cycle of lectures presented by Painters who were especially active in the Ibero-American World and who over the centuries have contributed to reducing gender bias and putting an end to a series of stereotypes in the world of the arts.

Francis Smith

In Search of Lost Time

Curatorship: Jorge Costa
Exhibition dedicated to the painter Francis Smith.
Temporary Exhibition

My Friend

Works and Documents of the Ernesto de Sousa Collection (1921-1988)

MNAC is associated with the celebrations of the centenary of the birth of Ernesto de Sousa, one of the most relevant personalities of contemporary Portuguese, whose influence continues to be active.
Temporary Exhibition


Ana Vidigal e Nuno Nunes-Ferreira

Curatorship: Emília Ferreira
Two personal archives, two legacies by two artists whose parents took part in a traumatic moment in the history of Portugal.
Temporary Exhibition

Modern glances

Curatorship: Maria de Aires Silveira
Crossing glances and a taste for pictorial framings in the MNAC collection.
Temporary Exhibition

110 years

An intervention that celebrates 110 years of the MNAC.