The "Bloy system" is a composition technique invented in 2017 by ARFI that allows for the playful arrangement of text and improvisation. “System” because the design rules are very precise; Bloy because the first experimentation of the system was carried out with texts by Léon Bloy.”

Multidisciplinary, it guides the musician toward artistic spontaneity and fosters collective creation, marked by the text and time. It requires actors such as musicians, a writer, a reader, a composer, and a timekeeper.

Malleable and constantly re-evaluated by its creators, this technique adapts to its audience and can also be used without text, writer, or reader.

Each musician, carefully considered by the composer, plays a unique role in the piece. The plurality of personalities then requires attentive listening to one's surroundings to ensure a living artistic dialogue. Within a collective practice, the musician develops a unique approach to their instrument and artistic thinking.