Dubstep and trap are two music styles, which are explained as follows:

(1) Dubstep, a type of electronic music, originated in London. One of the branches of electronic music. Dubstep is a type of electronic music that was born in South London, England in 1998. It was influenced by British garage music in the early new millennium and was named by AMMUNITION PROMOTIONS.

From a music theory perspective, Dubstep is known for its dark tones, sparse rhythms, and emphasis on bass. Dubstep was only spread in some small local places until 2005 and early 2006. , due to the dissemination effect of some websites, this type of music can be preserved and developed.

(2) Trap is a type of hip-hop music formed in the southern United States in the early 1990s. It is characterized by heavy 808 drums, 2x, 3x acceleration or continuous hi-hats (hi-hats). , and use brass instruments, woodwind instruments, and keyboard instruments to create strings like movie interludes, creating an overall dark, weird, cold, and psychedelic atmosphere.

Extended information:

Many DUBSTEP works combine one and many bass points, a characteristic inherited from DRUM 'N BASS. Generally, the percussive part will pause, usually making Rewinding (or rewinding) is DUBSTEP DJ uses another technology. If a song is particularly popular, the DJ will manually play back the record without having to lift the needle. He will continue to experiment with replays. Among many DUBSTEP pioneers, the use of rewinding is also an important element in the scene. The technology originated from DUB REGGAE SOUNDSYSTEM and is also used in British garage music and jungle nights.

Reference: Baidu Encyclopedia-trap

Reference: Baidu Encyclopedia-Dubstep