The 1960s and 1970s found the group developing a specialty in Renaissance music under the direction of University professor Donald Loach, who developed a countertenor section within the group to meet the demands of the polyphonic style. At this time the group performed on national and international stages, including a performance at the State Department for the Washington Diplomatic Corps Banquet in 1968, the only college glee club to be so honored at the time. In 1971, the Z Society gave the Glee Club its Organization Award in recognition of its concerts, the recording of its album "A Shadow's on the Sundial", and its pending first European tour. The group toured Europe in 1972, funding the trip with individual and community contributions, as well as profits from their 1972 recording, "A Shadow's on the Sundial."