Coudenberg Sound Box Fest 2025, a unique festival in a historical place

23 nov - 14 dic

Beneath the streets of Brussels lies a hidden world - the ruins of Charles V’s palace - transformed since 2021 into a bold sound laboratory by the Coudenberg Sound Box Fest (CSBF). Under the artistic direction of Matteo Gemolo, this unique festival merges early music with contemporary voices, breaking boundaries and blending heritage with innovation.

Staying true to its tradition, the fifth edition will consist of four consecutive Sundays of double concerts, from 23 November to 14 December 2025, celebrating the human voice in all its depth and diversity across time and cultures. From Franco-Flemish 16th century polyphony to Mozart on period instruments, minimalistic and poetic night performances, and 18th century and contemporary women composers, the program also welcomes unconventional duos and fresh artistic encounters from pop to minimalism, offering a powerful reflection on identity, memory, and future sounds.

This year also marks a turning point with three exciting additions. NextGen 2025, a brand-new program for emerging ensembles, will provide mentorship, hands-on workshops, and a showcase concert at CSBF 2026, evaluated by a distinguished international jury of experts in the field. In collaboration with the Koninklijk Conservatorium Brussel, the festival will host a public conference on the musical history of Brussels across the centuries, opening the door to deeper interdisciplinary dialogue. Finally, audiences will be invited to discover Cubiculum Musicae, an immersive installation by RicercarLab (CRNS, Université de Tours), designed to recontextualize musical works in their original historical and visual environments through a scientifically curated experience.

Full programme and tickets here. We love showcasing talented Belgian artists! Check out our playlist to discover new sounds and support local music.

Calling All Artists!

Are you an artist? Do you want to be featured in Brussels Music Agenda? Submit your request via Groover. Click below to get started!

Why Attend Les Nuits Weekender?

Les Nuits Weekender is not just another music festival. It’s a celebration of creativity and culture! You’ll experience a vibrant atmosphere filled with passionate artists and enthusiastic fans.

Connect with Fellow Music Lovers

This event is a fantastic opportunity to meet like-minded individuals. Share your love for music, exchange stories, and make new friends. The energy is contagious!

Explore the Venue

Le Botanique is an iconic venue in Brussels. Its unique architecture and intimate setting create the perfect backdrop for live performances. You’ll feel the magic in the air as the artists take the stage.

Immerse Yourself in the Experience

Prepare for an unforgettable experience! With diverse genres and styles, there’s something for everyone. Whether you're a die-hard fan or just curious, you’ll leave with memories that last a lifetime.

Support Local Artists

By attending, you’re not just enjoying great music. You’re also supporting local talent! Help shine a spotlight on Belgian artists and their incredible contributions to the music scene.

Final Thoughts

In conclusion, Les Nuits Weekender is a must-attend event for anyone who loves live music. Mark your calendars for 31 October to 2 November! Grab your tickets and get ready for an amazing time!

Let’s make this festival unforgettable together!