* Bass guitar: The bass guitar provides the low end for punk rock music. It is often played with a pick, but some bassists also use their fingers.
* Drums: Drums are used to keep the beat in punk rock music. They are often played very fast, and the drummer may use a variety of techniques, such as cymbal crashes and tom-tom rolls.
* Vocals: Vocals are also important in punk rock music. The singer often sings in a shouted or aggressive style, and the lyrics are often about social or political issues.
* Other instruments: In addition to the four main instruments, other instruments are sometimes used in punk rock music, such as keyboards, synthesizers, and horns.