In another poster designed for a Gary Keys and John Myerson production at Philharmonic Hall, Glaser promotes a performance by the four members of the folk-rock band The Lovin’ Spoonful with a surreal image of four spoons in 18th-century dress strolling in a park. He described it on his website as “A quartet based on the Blue Boy by Gainsborough. It seemed appropriate at the time.” The band itself is perhaps best known for its 1965 hit single “Do You Believe in Magic?”