1. Lossless music refers to music that has not been compressed or distorted, and its sound quality is the highest, which can completely restore the original audio signal. The bit rate of lossless music is usually very high, which can reach 32Kbps or even higher, which means that it can provide very clear and realistic sound quality.

2. Superquality music usually refers to music that has been compressed to a certain extent, but can still maintain a high sound quality. The code rate of super music is generally around 192Kbps, and the sound quality is higher than that of ordinary music.

3. High-quality music usually refers to music of ordinary quality, with a low bit rate, generally around 128Kbps. Compared with lossless music and super music, the sound quality of high-quality music is slightly worse, and it sounds distorted or unclear. Therefore, no harm is good.