This study investigated the reduplication of Indonesian words in phonology is a phoneme that forms a change in meaning with the addition of an affix in Indonesian song. The method of analyzing it is in the form with instrumental melody examined with vocables melodic, reduplication and stress and musical rhythm. Repetition of words with different tune does not affect the kind of stress in the syllable of Indonesian lyrics. Music rhythms and melodies do not change even though the sounds of the G and D melodies always alternate are also the same in each song words.