The beat is the accompaniment rhythm. In hip-hop culture, it means accompanying music.

The beat in rap refers to the accompaniment of a song, which is equivalent to arrangement. Composition and arrangement are two different concepts. Composition first, then arrangement. Some well-known rappers will ask some big-name producers to make beats for them, and many talented singers can also make beats themselves.

Beat as we saw in the program, rapper should choose beat before composing music, and then create it himself. There are many public beats to choose from.

In the street dance competition, MC often said that "DJ installs a B" is actually DJ downbeat, that is, let DJ give A music, and localization becomes DJ installs A B.

Hip-hop competitions also belong to hip-hop culture. Hip-hop culture is not well known because people don't understand it. Nowadays, the most well-known hip-hop culture includes rap and hip-hop.

Extended data:

Beat refers to the accompaniment produced by the producer through drums, synthetic instruments and sampling. The beat may involve the melody created by the producer, but this part of creation is usually classified as production in hip-hop music. Usually rappers create their own finished beats that can be numbered by others, and they can also make their own beats if they have enough time.

Hip-hop originated in the United States, which is a general term for many different kinds of dances based on different street cultures or musical styles. The earliest street dance is Locking, which originated in the 1960s.

References:

Baidu encyclopedia-hip hop dance