This version has been requested by many  musicians, so that they can play in accordionist position. The advantages of this version:   *  Playing comfort   *  Accordionist position   *  Free left hand Ce  who  allows you to explore new horizons by playing another instrument for example. Note: We can return to the traditional position at any time by simply removing the reticulated tube and the strap.      PRICE: 1390 € Strap version.