A song player is someone who plays a song, typically by using a musical instrument or device such as a guitar or a piano. A song performer is someone who sings or plays a song in front of an audience, either as a solo artist or as part of a group. A song performer may also play a musical instrument as part of their performance. In general, the term "performer" implies a level of showmanship and entertainment, while the term "player" is more focused on the technical aspect of playing music.