How many good songs should he recommend?

There are many good music styles that can be referred to: 1. pop music: pop music is usually one of the most popular types of music. It is usually performed by a band or an individual. Its style and rhythm are constantly changing. Some popular songs include "Yesterday,""Bohemian Rhapsody," and "Hello." 2 Rock music: Rock music originated in the 1950s in the United States as a music style full of vitality and passion. It usually consists of guitar, bass, drums, strings, and other instruments. The song usually has a repetitive rhythm and strong melody. Famous rock songs include "Stairway to Heaven,""Bohemian Rhapsody," and "We Will Rock You." Electronic music: Electronic music is a type of music composed of electronic instruments, computer software, and sound effects. It usually has a complex rhythm and dynamic changes, and its styles are varied, including dance music, pop electronics, experimental electronics, etc. Some of the famous electronic songs include "Don't Stop Believin',""Hello" and "Blackstar". 4. classical music: classical music is a kind of music composed by classical musicians, usually including orchestral music, chamber music, opera, etc. It usually has a complex structure and a high degree of skill. Its style is elegant and noble. Some famous classical music songs include "Enya's Song,""Bohemian Rhapsody," and "The Mass." 5.Jazz: Originating in the early 20th century, it was a type of music that focused on improvisation and solos. It usually includes a variety of instruments such as the guitar, drums, bass, and piano. Its style is full of innovation and vitality. Some of the famous songs include "Toto's '80s,""Hello" and "Clapton's Guitar Playing."