The second, a drum beat combo with bass and snares called boom bap.
第二个是带有低音和军鼓的鼓点组合，称为“boom bap”。
英语百科
Boom bap
Boom bap is a style of production in hip-hop music. The term "boom bap" is an onomatopoeia for the drum sounds prominent in boom bap. It is usually recognized by an acoustic drum loop/break that is then chopped up and played using a sampler such as the Akai MPC or the SP1200. The term was popularized by the album Return of the Boom Bap by KRS-One.