In the music field, "mp" usually refers to "MIDI file". MIDI is a digital audio format that can record not only notes, but also timbre and other data. Through MIDI files, users can produce their own musical works, or convert existing musical works into different timbres or formats. MIDI files are an integral part of today's music production and creation.

In addition, "mp" can also be the abbreviation of "MP3 audio format". MP3 is a popular audio format that is capable of compressing the size of audio files while maintaining a high degree of original sound quality. Because of this, MP3 has become one of the popular music download formats on the Internet, bringing great convenience to people enjoying music.

In addition, some people also use "mp" as the abbreviation of "music player". These players usually support different audio formats, such as mp3, wav, flac, etc., and can also play video files. With such a player, people can enjoy their favorite music or video works anytime and anywhere on their mobile devices, adding a lot of fun to people's entertainment lives.