 Nassi and his wife built and supervised virtually the entire musical education system for the Lower Cape, encompassing the towns of Provincetown, Truro, Wellfleet, Chatham, Eastham, Harwich, and Orleans.Nassi founded many ensembles, including the Cape Cod Philharmonic Orchestra, the forerunner to the present Cape Cod Symphony.Nassi also established a publishing concern in Orleans, which issued many of Nassi's original compositions and arrangements of Albanian folk songs.