2003 release ** "“The human voice must not be limited only to a conventional language, but is an inexhaustible source of natural musical instruments. If it is coupled with jazz it becomes a double musical instrument”: Mimmo Rotella dixit, and here is a combative group of Italian jazz musicians, stimulated by the maestro in his eighties, puts the theory into practice. The Rotella Variations therefore materialize in nineteen episodes of mostly short duration, often introduced or concluded, contami…