Desc: Hierba entre los adoquines: Directed by Jorge Ruiz Abánades. With Diego Agulló, Chefa Alonso, David Area, Miguel Ángel Barreto. Free improvisation is perhaps the most experimental and avant-garde genre of contemporary music, and for this reason it is also the great unknown (despite having existed for decades in Europe, North America or Japan, and certainly today it is represented in a multitude of countries around the world). Since it starts from a principle of "free creativity", this genre is also tremendously diverse, with no aesthetic or formal limits, open to the use of all kinds of instruments or objects, open to mix with other disciplines (such as dance, performance, video-art or poetry...), and, above all, this is a genre where each musician explores their own language and personality, integrating their own references and experiences and making them dialogue with other musicians. Planned and led by En Busca Del Pasto (a free improvisation collective based in Madrid, Spain, from 2003), this film, made as an essay-documentary, shows this diversity through some thirty free improvisers based in its own city (Madrid), exploring the backbone of this peculiar practice: spontaneity, risk and experimentation; resistance and tolerance; openness, dialogue and solidarity among black sheep. A music that oscillates between aesthetic reflection, political stance and playful and therapeutic dispersion. Between the strange, the delicate and the wild. A practice on the fringes of official circuits and markets, but very lively, very open, very free, like the grass growing between the cobblestones. A film about music and life.