Opera aperta, Umberto Eco

Opera aperta by Umberto Eco is not merely a collection of essays born in a climate of intense artistic innovation, but above all a groundbreaking work. Referring to experiments in serial and electronic music — particularly those of Luciano Berio, Bruno Maderna, Karlheinz Stockhausen, Pierre Boulez, Henri Pousseur, and John Cage — as well as the poetry of the Italian anthology of the Novissimi (Antonio Porta, Nanni Balestrini, Elio Pagliarani), the book sparked intense debate immediately after its first publication in 1962. It soon came to be regarded as a kind of manifesto for the Italian literary avant-garde that would later converge in the Gruppo 63.

Eco’s reflections are largely inspired by his analysis of contemporary musical compositions. In outlining the defining characteristics of avant-garde movements, he emphasizes the crucial role granted to the performer. The interpreter is not only free to understand the composer’s instructions according to personal sensitivity but is also invited to intervene in the very structure of the composition through creative improvisation.

Eco observes similar phenomena in other artistic fields: the mobiles of Alexander Calder, the novel Finnegans Wake by James Joyce — whose writing appears deliberately fragmented — the poetry of the neo-avant-garde, and even modern design, from articulated lamps to modular furniture.

Eco theorizes two degrees of “openness.” The first concerns the psychological mechanism underlying aesthetic enjoyment, which occurs in front of any work of art. Starting from the philosophical premise of totality, the viewer tends naturally to complete and integrate the aesthetic message received, often experiencing a quasi-religious feeling of contemplation. In the case of a novel, the reader constantly formulates predictions about the course of the narrative. If the story is completely predictable, the novel becomes dull and banal; if it continually challenges the reader’s expectations, the reader must constantly revise these predictions, making the work engaging and compelling.

Contemporary poetics, however, aims to go beyond this intrinsic openness of art by introducing a second level of openness that is deliberate and programmatic. Avant-garde artists intentionally construct within their works a network of possibilities that never lead to a single definitive outcome, keeping the work permanently open.

Whether this openness stems from the author’s explicit intention or from the natural structure of the artwork itself, Eco ultimately concludes that all works of art are “open” to some degree because they always require the active participation of the interpreter.

After demonstrating this openness in music and in the phenomenology of language, Eco extends his analysis to broader philosophical reflections. Opera aperta offers a wide field of aesthetic inquiry in which ideas from Thomas Aquinas, the literary innovations of Joyce, modern information theory, linguistic studies, and the philosophy of Aristotle intersect.

Some chapters — especially the section on “Poetic discourse and information” — even adopt a strongly scientific approach. In dialogue with the ideas of Luigi Pareyson, Eco argues that one defining feature of modern art is the possibility of creating new systems of meaning and relations with every new work.

Despite the book’s apparent unity, its themes are sometimes connected by a rather turbulent argumentative thread, particularly when Eco moves from the phenomenology of past art to contemporary poetics, a field characterized by intense debates about aesthetics, artistic theory, and sociopolitical influences.

A striking example is the essay Chance and Interlacing, devoted to the editing of a live television broadcast. This operation — improvised yet constrained by certain rules — perfectly illustrates the idea of art as a form of “making.” The director appears as an artist who “paints” through his cameramen. By analogy, this recalls the gestural painting of Jackson Pollock. At the same time, it anticipates the mechanisms of illusion that characterize modern media — television and even today’s social networks — revealing humanity’s growing need for illusion and self-illusion.

Nevertheless, certain criticisms can be directed at the book. Eco sometimes criticizes the avant-garde too harshly, accusing it of having focused excessively on its pars destruens. This criticism seems paradoxical given that Opera aperta has often been interpreted as a manifesto of the neo-avant-garde.

The deeper issue may be that, in attempting to rationally legitimize the openness of artworks, Eco does not always fully address their limits. By pushing indeterminacy too far, the risk emerges that the “open circle” never closes again.

At a certain point, the book itself seems to become so “open” that the author almost loses control over it. From an initially aesthetic reflection emerge ethical and metaphysical questions that Eco does not fully develop.

Yet the book’s fundamental merit remains clear: it brings together a wide range of issues from different artistic fields under a single aesthetic question. By analyzing the processes of artistic creation, representation, communication, and reception, Eco illuminates the interactive continuity between these stages.

One may regret the absence of a fully developed definition of the work of art that goes beyond mere appearance and manifestation. But perhaps it is precisely the task of readers and interpreters to continue this work — a work that is open both in title and in essence.