In music production, an outro, also known as an outro section or an outro tag, is the final section of a song that provides a conclusion and a sense of closure to the listener. The purpose of an outro in a song is to create a smooth transition from the end of the song to the silence or the next track in the album or playlist.

The outro section typically features a gradual fade-out of the music, with the instruments and vocals gradually decreasing in volume until they fade out completely. This gradual fade-out can help to create a sense of finality and closure to the song.

An outro can also serve as an opportunity for a musical flourish or a final statement that reinforces the theme or message of the song. For example, the outro of a ballad might include a soaring guitar solo or a haunting vocal riff that leaves a lasting impression on the listener.

The purpose of an outro in a song is to provide a satisfying conclusion to the listener and create a smooth transition to the next song or the end of the album. A well-crafted outro can leave a lasting impression on the listener and help to make the song memorable.