Venues and festivals have joined the federation around a common goal: fostering diversity in artistic proposals presented to their audiences, allowing them to discover the pleasures of big band music and its incredible sound possibilities.

Partner venues and festivals agree to program varied formats of music, and to forge closer links with jazz and improvised music big bands and collectives. These can take the form of concerts, residencies, or other kinds of activities. They also agree to take part in the actions developed by the federation.

Grands Formats regularly organizes Grands Formats Focus events in these venues, landmarks echoing the annual Rentrée Grands Formats conference. These gatherings aim to highlight the initiatives promoting music performed in large ensembles in France.