A decrescendo is a musical term that indicates a gradual decrease in volume or intensity. It is often used in compositions to create a sense of fading or to build emotional depth. Musicians interpret this direction by playing softer over a specified passage, allowing the music to transition smoothly. In sheet music, a decrescendo is typically notated with a symbol that looks like a sideways angle bracket, pointing to the right. This notation helps performers understand when to lower their volume, contributing to the overall dynamics of the piece, enhancing the listener's experience of the music.