A song doesn't need to be fully fixed
Even when music is carefully written down, performers still make choices about tempo, phrasing, and style. That means performance is not just playback. It is also interpretation.Performance and Improvisation in Music
Some traditions expect freedom
In popular and traditional music, performers often have more room to reshape a song. A band playing a cover can add a solo, change the form, or build a new introduction.Performance and Improvisation in Music
