Barbershop music Barbershop music Barbershop vocal harmony, as codified during the barbershop revival era (1930s–present), is a style of a cappella close harmony, or unaccompanied vocal music, characterized by consonant four-part chords for every melody note in a predominantly homophonic texture. Each of the four parts has its own role: generally, the lead sings the melody, the tenor harmonizes above the melody, the bass sings the lowest harmonizing notes, and the baritone completes the chord, usually below the lead. The melody is not usually sung by the tenor or baritone, except for an infrequent note or two to avoid awkward voice leading,
Homer's Barbershop Quartet and his sister Lisa notice a picture of their father, Homer, on the cover of an old LP album. Homer explains to his family that he, Principal Skinner, Barney Gumble, and Apu Nahasapeemapetilon recorded a barbershop quartet album in 1985, which catapulted them to national fame. He narrates to his family the story of how the band formed, reached the pinnacle of success, and eventually folded. At the end of the episode, the group reunites to perform a concert on the roof of Moe's Tavern, singing their number-one hit "Baby on Board". Throughout the episode, several references are made to