 Pepper's Lonely Hearts Club Band".In the 1970s, harp parts were common in popular music, and can be heard in such hits as Cher's "Dark Lady" and "Gypsies, Tramps & Thieves", as well as "Boogie Nights" by Heatwave.Most often it was played by Los Angeles studio harpist Gayle Levant, who has played on hundreds of recordings.