«Second Thought» forms the accompanying and supporting programme for Sonic Boom, complementing it with a structured development format for the participating artists. This includes individual coaching and one-to-one mentoring for artistic development and project management issues.

In addition to individual support, a collective programme promotes exchange and the professional positioning of the artists. Panel discussions in the «Collective Listening» format, workshops on career development, and lecture and pitch training create space for reflection, presence in performance, and networking.

A pool of experienced mentors accompanies the artists in residence and covers various specialist areas, including music dramaturgy and text, music marketing, contemporary music performance, improvisation, composition, video and sound art, music theatre, stage and scenography, lighting design and experimental electronic music.

In addition, the artists in residence have access to the infrastructure of the Gare du Nord. The theatre hall is temporarily transformed into a laboratory where ideas are developed, formats are tested and productions are further refined.

The programme concludes with a two-day presentation in which the artists in residence present their current and future projects to organisers and experts from the scene.