The article discusses how originality in song works is crucial for copyright protection. It explores different criteria for defining originality, using various theories and doctrines. The Indonesian Copyright Act may not fully cover these criteria, so additional measures are needed. Song works have unique characteristics that set them apart from other types of works, requiring a specific approach to determine their originality. The research uses a qualitative method to suggest supplementary provisions to the Copyright Law for defining the originality of songs based on their creators' intellectual input.