Progressive Jazz Rock – 4dB – Press informations


The 4dB is a fusion group of progressive jazz rock, formed in 2013 under the impulse of the guitarist and composer Damien Boureau, surrounded by bassist Olivier Michel, keyboard Thomas Cassis, and drummer Francesco Marzetti.

These four musicians distil a jubilant music, which merges jazz, rock, pop or world music. Each composition is an invitation to travel through a universe rich in colors. The 4dB offers a singular music, which combines the richness of a writing nourished by the influences of each member of the group and the freedom of improvisation.


  • 2013:formation of the band
  • 2014: the 4dB is finalist national of the springboard jazz in Vienna
  • 2016: Release of the first album, Rokh, at MuseaRecords (Great Winds label). The album is hailed by critics: Selection Album by Le Monde, hope of the year
  • 2018: Release of the second album, Animal, MuseaRecords (Great Winds)

New album: Animal

Animal, the new album of the 4dB, proposes 11 compositions where each moment is a call to the creative freedom and antiformatage. After Rokh, it’s a new opportunity to discover the progressive jazz of 4dB.

Listen to our albums



New album “Animal” – teaser

Live captation: “Vieux Robo”

Summary of the teaser:

Why “Animal”?

Animal because it’s a kind of flash that I had on the name of this album. There was a kind of thematic that emerged, it was a kind of mise en abyme or reflection on the animality of human, the questions that could arise and especially the creativity that could emerge from it.

An HD quality album

We did a lot of production work, especially for this kind of music. There are additions at the sound level, effects level. We worked to release an HD quality album for digital formats. We did a lot of spatialization to get really into the psyche and progressive side of progressive jazz rock music.

A resolutely progressive jazz album

We come to draw the color, the sound of progressive music, and the  improvisation of the jazz, with a part of random and therefore of risk in the way we play on the instruments. For example for bass, in writing, we have something that is based on groove, big sound. The keyboard has both a solo role, that is to say that we will hear long solo tracks, but equally it colors rhe music, giving it this 70’s color.

This is a project, according to the the way music is approached, that we can bring more towards rock or more towards jazz. The drummer has that role.

Obviously, when we talk about the guitar, this is where progressive jazz makes sense.We are really between jazz and rock, either in the game or in the melodic and rythmic language.

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