Are there only three instruments in rock music? According to my online search, there are only guitars and bass drums. How can I listen to rock music and messy background music?

Rock music is not limited to these three instruments, there are many kinds of rock music. Bruce and blues rock, for example, are accompanied by the blues harmonica. Black metal, this type of rock, is mainly composed of piano, violin and soprano. Visual rock also has the same lyric factors as the piano. So these three instruments are not the only ones that can play rock. At present, there are many keyboard instruments such as electronic synthesizers or electronic keyboards to imitate various timbres.