"Ballad in Plain D" is the tenth track of Bob Dylan's fourth album, Another Side of Bob Dylan, and—at eight minutes, eighteen seconds—the longest song on the album. The song recounts the circumstances surrounding the disintegration of Dylan's relationship with Suze Rotolo. Dylan details the conflicts between himself, and Rotolo's mother, Mary Rotolo, and her sister Carla Rotolo. Critic Andy Gill writes that, in this song, Dylan clumsily idealises Suze Rotolo, while "viciously characterizing Carla as a pretentious, social-climbing parasite".