Garson spent the mid-1960s on a rapid succession of accompaniment and arrangement jobs: two Doris Day albums ("Doris Day's Sentimental Journey" and "Latin for Lovers"), Mel Tormé's "Right Now!" album of contemporary covers like "Secret Agent Man," and Glenn Yarborough's highly successful cover of Rod McKuen songs, "The Lonely Things". He also arranged for the Lettermen on Capitol Records, provided background to Laurence Harvey reading poetry on Atlantic Records, and provided arrangements for Esther Phillips, Julie London, Nancy Wilson, Chris Montez, Leslie Uggams, Joanie Sommers, Paul Revere and the Raiders, and many others. He was a favorite of producers when the job involved soft pop vocal groups and string ensembles, and was responsible for a wide variety of easy listening records, including "Bossa Nova for All Ages" by the Continentals, "Symphony for the Soul" by the Total Eclipse, and "Sea Drift" by the Dusk 'Til Dawn Orchestra. In 1967, he arranged and produced Bill Withers' early single, "Three Nights and a Morning".