1. Different definitions. Pure music works are music that does not contain lyrics in the original intention of composition, and high-fidelity music works are replayed sound works that are highly similar to the original sound.
2, the purpose is different. Pure music works completely show the beauty of music, and will not use any title to express the content of the work. The author's emotions are all expressed in music, and high-fidelity music works maximize the recorded programs played through the sound system, approaching and achieving the effect of live performance and singing.