 Carrettin gave his symphony orchestra conducting debut with the Royal Philharmonic of Kishinev, Moldavia, and has since conducted professional orchestras in Germany, the Czech Republic, Romania, Bolivia, and the United States.He has appeared as conductor with the Tri-Valley Youth Symphony and the Oakland Youth Orchestra in California, the Wabash Valley Youth Symphony in Indiana, the Houston Youth Symphony Sinfonia, the 2011 Fort Bend All-Region Orchestra, and the Illini Orchestra at the University of Illinois, where he led the ensemble in a number of world-premiere performances.In 2005, Carrettin conducted the first-known performance of Giuseppe Antonio Capuzzi’s ballet music, “l’Impostore punito”, at Rice University Shepherd School of Music as part of the Capuzzi Festival.