简单就古典、摇滚、爵士、流行做了一下介绍，不知道是不是能帮上你的忙。
Music can be divided into genres in many different ways. These classifications are often arbitrary and controversial, and closely related styles often overlap. Many do not believe that generic classification of musical styles is possible in any logically consistent way, and also argue that doing so sets limitations and boundaries that hinder the development of music. While no one doubts that it is possible to note similarities between musical pieces, there are often exceptions and caveats associated. Labeling music with genres often do not reflect a specific culture, race, or time period. Larger genres consist of more specific subgenres.
Classical music is a broad term that usually refers to mainstream music produced in, or rooted in the traditions of Western liturgical and secular music, encompassing a broad period from roughly the 9th century to present times. The central norms of this tradition became codified between 1550 and 1900, which is known as the common practice period.
European music is largely distinguished from many other non-European and popular musical forms by its system of staff notation, in use since about the 16th century. Western staff notation is used by composers to prescribe to the performer the pitch, speed, meter, individual rhythms and exact execution of a piece of music. This leaves less room for practices, such as improvisation and ad libitum ornamentation, that are frequently heard in non-European art music (compare Indian classical music and Japanese traditional music) and popular music.
The public taste for and appreciation of formal music of this type waned in the late 1900s in the United States and United Kingdom in particular. Certainly this period has seen classical music falling well behind the immense commercial success of popular music, in the opinion of some, although the number of CDs sold is not indicative of the popularity of classical music.
The term "classical music" did not appear until the early 19th century, in an attempt to "canonize" the period from Johann Sebastian Bach to Beethoven as a golden age. The earliest reference to "classical music" recorded by the Oxford English Dictionary is from about 1836. Many writers feel that "classical" is an inappropriate term for mainstream and avant-garde music written since the latter part of the 19th century; hence the common usage of scare quotes.
Rock music is a loosely defined genre of popular music that entered the mainstream in the mid 1950s. It has its roots in 1940s and 1950s rhythm and blues, country music and also drew on folk music, jazz, and classical music.
The sound of rock often revolves around the electric guitar or acoustic guitar, and it uses a strong back beat laid down by a rhythm section of electric bass guitar, drums, and keyboard instruments such as organ, piano, or, since the 1970s, synthesizers. Along with the guitar or keyboards, saxophone and blues-style harmonica are sometimes used as soloing instruments. In its "purest form", it "has three chords, a strong, insistent back beat, and a catchy melody."
In the late 1960s and early 1970s, rock music developed different subgenres. When it was blended with folk music it created folk rock, with blues to create blues-rock and with jazz, to create jazz-rock fusion. In the 1970s, rock incorporated influences from soul, funk, and latin music. Also in the 1970s, rock developed a number of subgenres, such as soft rock, glam rock, heavy metal, hard rock, progressive rock, and punk rock. Rock subgenres that emerged in the 1980s included New Wave, hardcore punk and alternative rock. In the 1990s, rock subgenres included grunge, Britpop, indie rock, and nu metal.
A group of musicians specializing in rock music is called a rock band or rock group. Many rock groups consist of an electric guitarist, lead singer, bass guitarist, and a drummer, forming a quartet. Some groups omit one or more of these roles and/or utilize a lead singer who plays an instrument while singing, sometimes forming a trio or duo; others include additional musicians such as one or two rhythm guitarists and/or a keyboardist. More rarely, groups also utilize stringed instruments such as violins or cellos, woodwind instruments such as saxophones, and brass instruments such as trumpets or trombones.
Fusion or, more specifically, jazz fusion or jazz rock, is a musical genre that developed in the late 1960s from a mixture of elements of jazz such as its focus on improvisation with the rhythms and grooves of funk and R&B and the beats and heavily amplified electric instruments and electronic effects of rock. While the term "jazz rock" is often used as a synonym for "jazz fusion", it also refers to the music performed by late 1960s and 1970s-era rock bands when they added jazz elements to their music such as free-form improvisation.
After a decade of development during the 1970s, fusion split into different branches in the 1980s. While some 1980s performers continued the improvisatory and experimental approaches of the 1970s, others moved towards a lighter, more pop-infused easy-listening style called smooth jazz which often included vocals. Since the 1990s, some fusion bands have also incorporated electronica, hip hop, and heavy metal.
Fusion albums, even those that are made by the same group or artist, may include a variety of styles. Rather than being a codified musical style, fusion can be viewed as a musical tradition or approach. Some progressive rock music is also labeled as fusion. Fusion music is typically instrumental, often with complex time signatures, metres, rhythmic patterns, and extended track lengths, featuring lengthy improvisations. Many prominent fusion musicians are recognized as having a high level of virtuosity, combined with complex compositions and musical improvisation in complex or mixed metres.
Pop music is a music genre that features a noticeable rhythmic element, melodies and hooks, a mainstream style and a conventional structure.
The term "pop music" was first used in 1926 in the sense of "having popular appeal" (see popular music), but since the 1950s it has often been used colloquially to designate an ostensibly separate musical genre, sometimes perceived as a "lighter" alternative to other forms of popular music, such as rock and roll.
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