What does DS al coda mean and what is a coda?

"DS al coda" is a musical term that stands for "Dal Segno al Coda," which instructs musicians to return to a specific sign (the segno) and then proceed to the coda section of the piece. A coda, meaning "tail" in Italian, is a concluding passage that wraps up the music, often providing closure and finality to the composition. In essence, the directive leads performers back to the segno and then onward to the coda to complete the piece.