Guitarist and musical organizer Dominique Répécaud has a perfect feel for freerock improvisation, which he has proven especially with his tribal, shape-shifting ensemble Soixante Etages, which often works with sound collages, his former offshoot, the power-trio Etage 34, or the super-quartet Rekmazladzep, featuring saxophonist Daunik Lazro, bastrombonist and trumpeter Thierry Madiot and guitarist Camel Zekri. His most recent activities also include the duo Les Massifs De Fleurs with sound magici…