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According to the provisions of our country's laws, "contact + substantial similarity" is generally used to define whether a musical work is plagiarized. 02

"Contact" can also be divided into two situations. One is when the musical work itself has been widely disseminated, and if another similar song appears, it can be deemed as plagiarism; Another situation is that the music work itself has not been published publicly, but if the music work has been entered into the competition, the participating judges and audiences will be deemed to have been exposed to the music work. 03

Substantial similarity is relatively easy to understand, which means that there are a lot of similarities in melodies between musical works. If the similar melody fragments are determined to be original, they can be considered plagiarism. 04

In addition, substantial similarity must also be judged based on the entire musical work. Generally, 8 measures of similarity can be judged as plagiarism, or the musical accompaniment has too many similar proportions of dominant and dominant chords, which is also the case. It can be judged as plagiarism.