1. Differences in reference

1. Light music: light and lively, lyrical music with simple structure, including instrumental music, dance music, etc.

2. Pure music: music whose original intention of composing does not include lyrics.

2. Differences in emphasis

1. Light music: focuses on the melody direction of the music and the included musical instruments, dance music, etc.

2. Pure music: Focus on expressing that the music does not contain lyrics, and the music mode completely expresses the author's emotions with pure and beautiful music.

3. Differences in usage examples

1. Light music: Before going to bed every day, listening to some light music can help you sleep.

2. Pure music: The pure music played in a loop in the bar is really nice.