After a successful collaboration in 2009 with the Mirabella Jazz Moderne Electric guitar, which Ratko used to record his last two CDs, Cris Mirabella has now just finished a new, unique guitar for Ratko: the 2013 Ratko Zjaca Mirabella Chambered Ten signature model. This guitar was a special construction. An idea of Ratko Zjaca, which Cris Mirabella then put to design and applied to wood. The resulting guitar is a unique and exciting collaboration from these two artists.