The present invention relates to a method for outputting song lyrics, song playing apparatus, and song playing system capable of easily recognizing lyrics of a song being played through a voice. The method comprises the steps of: outputting a melody of a first part of song being played within a playing period of the first part; and outputting lyrics of at least one subsequent part being played after the first part in a melody blank period within the playing period as a voice. The voice in the lyrics of the subsequent part is outputted based on tempo determined by basic tempo of the song being played.
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