tag
A brief repeated phrase added at the end of a song, extending the conclusion.
In Depth
In popular music, a tag is a short vocal or instrumental phrase repeated several times at the outro, often over a vamp. In jazz, a tag typically involves repeating the last two or four bars of a tune to create a more satisfying ending. Barbershop quartets use elaborate tags as standalone performance pieces. Tags give performers and audiences a final moment of shared musical pleasure before the song concludes.
In barbershop singing, tag competitions are a beloved tradition where quartets perform just the final few bars of a song, often with lush extended harmonies.