Heritage Days 2026 at La Seine Musicale (92): a sound stroll

The Seine Musicale is taking part in Heritage Days 2026 and, for the occasion, offers a sound walk. Here’s the schedule for this Saturday, September 19.

Did you know this? The Journées du Patrimoine are the cultural must-do of the season, arriving the weekend of September 19–20, 2026 across Europe. On the occasion, Paris and the entire Île-de-France region pull back the curtain on their treasures, with a programme thick of free tours, unconventional activities, and new-to-you venues that open their doors in an exceptional fashion. So, chasing a great plan to make the most of it?

Take a trip to the Hauts-de-Seine to discover this strange building, which has been standing in the middle ofIle Séguin in Boulogne-Billancourt since 2017. Conceived as a "musical destination",La Seine Musicale boasts an imposing 6,000-seat concert hall, "La Grande Seine", a 1,150-seat auditorium and various rehearsal and recording spaces.

Designed by architects Jean de Gastines and Shigeru Ban, the Seine Musicale is an architectural challenge, since the auditorium sits on the Seine and its wooden shell appears to float above the Parisian river. During the Heritage Days 2026, discover all the secrets of this venue that has quickly become a must-see cornerstone of the region's cultural life.

Here is the detailed program for the 2026 Heritage Days at La Seine Musicale in Hauts-de-Seine:

Open Day
La Seine Musicale opens its doors on Saturday, September 19, 2026, from 10 a.m. to 6 p.m.

On this open-house day, a wide array of activities awaits: guided tours, concerts, open rehearsals, a tour of the new immersive installation at SeineLab—an experimentation space for sound and digital media—with workshops for young audiences, virtual reality experiences, and more, plus the outdoor contemporary art trail and the Bellini garden.

It’s a friendly, free day with open access* to discover La Seine Musicale’s vibrant 2026/2027 season programming, in partnership with the Hauts-de-Seine Department and resident ensembles: Insula Orchestra, Philippe Jaroussky Musical Academy, and the Nouvelle Maîtrise des Hauts-de-Seine.

Heritage Days are, of course, a chance to (re)discover the building designed by Japanese architect Shigeru Ban, in collaboration with French architect Jean de Gastines, which opened in April 2017.

*Some events will be on-site and require advance reservations, subject to availability.

------------------------------------

Family-friendly options include:

At Le Club, a Family Zone open from 10 a.m. to 6 p.m. to pause, color, play, explore musical videos, and try virtual reality experiences centered on classical music.

At Le Cercle, pre-registration required, from 11 a.m. to 5:30 p.m.: a 20-minute session showcasing SeineLab’s youth workshops on sound and digital media, guided by Ircam-Centre Pompidou mediators.

Around La Seine Musicale, from 3 p.m. to 6 p.m.: artistic performances spill into the public space, echoing the works on Île Seguin. Expect circus, dance, and music—an engaging, poetic program full of surprises for all ages!

Visit La Seine Musicale’s site in September for the full program: www.laseinemusicale.com
Participation requirements: Free admission - No reservation required
Hours: Saturday, September 19, 2026 — 10:00 a.m.–6:00 p.m.
Listening walk at the Gauthier Mougin Departmental Park (in partnership with the Seine Musicale Open Doors)
Join a guide and two musicians for a thoughtful, sensory walk through the park.

Conceptualized by landscape architect Michel Desvigne, the park stems from an ambitious renaturation scheme for Île Seguin, following more than a century of industrial activity. Its winding route reveals fresh perspectives on the island, the river, and the surrounding territory.

The park also hosts a curated set of contemporary sculptures, forming a veritable open-air museum. This showcase is made possible thanks to support from the Hauts-de-Seine Department, the City of Boulogne-Billancourt, the Emerige Endowment Fund, the National Center for Decorative Arts (CNAP), and the Île-de-France Regional Fund for Contemporary Art (FRAC).

As you stroll, discover the landscape project and a selection of these works, accompanied by improvised music and sound pieces inspired by the landscape and the atmosphere of the site.

Meet at the park entrance, opposite the Tot'Aime sculpture by Jean-Charles de Castelbajac.

https://ileseguin-rivesdeseine.fr/fr
Participation requirements: Free with registration at www.ileseguin-rivesdeseine.fr. Note: meet near the Castelbajac artwork "Toi t'aime" opposite La Seine Musicale. Free | Reservation required - https://www.ileseguin-rivesdeseine.fr/fr/events/promenade-ecoutante-au-parc-departemental-gauthier-mougin
Schedule: Saturday, September 19, 2026 – 11:00 to 12:30
Open House Day — The Real Levitation of the L'immédiat Company
Real Levitation

--------------------

### The L'immédiat Company

In the hustle and bustle of daily life, something seems to slip free from the most basic laws. Characters step into the public space and sweep passersby into an uncanny adventure where bodies appear to defy gravity. Between acrobatic feats, illusion and poetry, Real Levitation turns the street into a briefly wondrous playground. A suspended moment, as joyful as it is perplexing, inviting us to see the world from a new angle.

The L’immédiat company puts it this way: “We’re used to vertigo as the fear of falling, but when the ground no longer holds us, abandons us, and our feet can’t rest on it, the void pushes us forward and the vertigo of not being able to touch the ground becomes contagious.”

Three surprise interventions around La Seine Musicale at 3:00 PM, 3:30 PM and 4:00 PM.

Full Open House Day program to be unveiled in September on La Seine Musicale’s website: _www.laseinemusicale.com_
Participation terms: Free admission - No reservation required
Schedule: Saturday, September 19, 2026 – 3:00 PM–3:15 PM, 3:30 PM–3:45 PM, 4:00 PM–4:15 PM
Open Day — Stick Insects from Libertivore Company — Fanny Soriano
### Phasmes

### Compagnie Libertivore – Fanny Soriano

Danse/Duo de portés main à main

Accès libre

A whirl of leaves, two bodies for a phasm, and music to transcend space, Phasmes invites us on a wondrous journey where dream and reality intertwine. Between circus and dance, two performers breathe life into a strange creature in perpetual metamorphosis. Sometimes vegetal, sometimes animal or mineral, it evolves with its interactions with its surroundings, conjuring up abstract and evocative figures. A singular visual experience that celebrates the power of movement and the beauty of living things.

Programme complet de la Journée Portes Ouvertes à découvrir en septembre sur le site de La Seine Musicale : _www.laseinemusicale.com_
Participation requirements: Free admission - No reservation required
Schedule: Saturday, September 19, 2026 – 5:30 PM to 6:00 PM