"My Heart's Symphony" is a song written by Glen Hardin and performed by Gary Lewis & the Playboys. It reached #13 on the Billboard Hot 100, #31 in Canada, #36 in the United Kingdom, and #98 in Australia in 1966. It was featured on their 1966 album, (You Don't Have To) Paint Me a Picture. The song was produced by Snuff Garrett and Leon Russell and arranged by Russell and Hardin Gary Lewis & the Playboys were an American 1960s era pop and rock group, fronted by musician Gary Lewis, the son of comedian Jerry Lewis. They are best known for their 1965 Billboard Hot 100 number-one single "This Diamond Ring", which was the first of a string of hit singles they had in 1965 and 1966. The band had an earnest, boy-next-door image similar to British invasion contemporaries such as Herman's Hermits and Gerry and the Pacemakers. The group folded in 1970, but a version of the band later resumed touring and continues to tour, often playing for veteran's benefits. Footage is from "High School Caesar" the 1960 American film directed by O'Dale Ireland. (source Wikipedia)