Abstract: A ligature for the mouthpiece of a reed wind instrument. The ligature is a flexible, pliable, and adjustable clamp collar which, when fitted to a mouthpiece, complements the shape of a mouthpiece and associated reed. The clamp has two circumferential bands held in spaced relation by a plurality of ties, with the bands intended to be arranged along two planes, more or less perpendicular to the longitudinal axis of the mouthpiece. The ligature has at least one, and preferably two, bars interposed between two of the longitudinal ties and arranged so that when the ligature is in use, the bars rest against a reed along their longitudinal extent.