Since the end of the lockdown, the Belgian jazz scene is experiencing a revival, supported by musicians mixing improvisation and electronic music. Around the Volta in Anderlecht, artists like Stuff, Echt! or Lander & Adriaan reinvent the genre and export it internationally. A 28-minute documentary by Jam explores this creative, festive and cosmopolitan scene, giving voice to the artists, DJs, labels and conservatories that make it live. Through the follow-up of the Echt group! European tour, the survey questions the existence of a "Belgian sound", the impact of cultural infrastructures and the perception of this effervescence abroad. The future will tell if this new jazz wave marks its time, but its dynamism is undeniable.