Rhythm and blues

Rhythm and blues, often abbreviated as R&B or RnB, is a genre of popular African-American music that originated in the 1940s. The term was originally used by record companies to describe recordings marketed predominantly to urban African Americans, at a time when "urbane, rocking, jazz based music with a heavy, insistent beat" was becoming more popular. In the commercial rhythm and blues music typical of the 1950s through the 1970s, the bands usually consisted of piano, one or two guitars, bass, drums, saxophone, and sometimes background vocalists. R&B lyrical themes often encapsulate the African-American experience of pain and the quest for freedom and joy. Lyrics focus heavily on the themes of triumphs and failures in terms of relationships, freedom, economics, aspirations, and sex.

The term rhythm and blues has undergone a number of shifts in meaning. In the early 1950s it was frequently applied to blues records. Starting in the mid-1950s, after this style of music contributed to the development of rock and roll, the term "R&B" became used to refer to music styles that developed from and incorporated electric blues, as well as gospel and soul music. In the 1960s, several British rock bands such as the Rolling Stones, The Who and The Animals were referred to and promoted as being RnB bands; posters for The Who's residency at the Marquee Club in 1964 contained the slogan "The Who - Maximum RnB". This tangent of RnB is now known as "British rhythm and blues". By the 1970s, the term rhythm and blues changed again and was used as a blanket term for soul and funk. In the 1980s, a newer style of R&B developed, becoming known as "Contemporary R&B". It combines elements of rhythm and blues, soul, funk, pop, hip hop and dance. Popular R&B vocalists at the end of the 20th century included Michael Jackson, R. Kelly, Stevie Wonder,Whitney Houston, and Mariah Carey.

Hip hop

Hip hop or hip-hop is a sub-cultural movement that formed during the early 1970s by African-American and Puerto Rican youths residing in the South Bronx in New York City. It became popular outside of the African-American community in the late 1980s and by the 2000s became the most listened-to musical genre in the world. It is characterized by four distinct elements, all of which represent the different manifestations of the culture: rap music (oral), turntablism or DJing (aural), b-boying (physical) and graffiti art (visual). Even while it continues to develop globally in myriad styles, these four foundational elements provide coherence to hip hop culture. The term is often used in a restrictive fashion as synonymous only with the oral practice of rap music.

The origin of the hip hop culture stems from the block parties of the Ghetto Brothers, when they plugged in the amplifiers for their instruments and speakers into the lampposts on 163rd Street and Prospect Avenue and used music to break down racial barriers, and from DJ Kool Herc at 1520 Sedgwick Avenue, where Herc mixed samples of existing records with his own shouts to the crowd and dancers. Kool Herc is credited as the "father" of hip hop. DJ Afrika Bambaataa of the hip hop collective Zulu Nation outlined the pillars of hip hop culture, to which he coined the terms: MCing or "Emceein", DJing or "Deejayin", B-boying and graffiti writing or "Aerosol Writin".

Song

A song is a single (and often standalone) work of music intended to be sung by the human voice with distinct and fixed pitches and patterns using sound and silence and a variety of forms that often include the repetition of sections. Written words created specifically for music or for which music is specifically created, are called lyrics. If a pre-existing poem is set to composed music in classical music it is an art song. Songs that are sung on repeated pitches without distinct contours and patterns that rise and fall are called chants. Songs in a simple style that are learned informally are often referred to as folk songs. Songs that are composed for professional singers are called popular songs. These songs, which have broad appeal, are often composed by professional songwriters, composers and lyricists. Art songs are composed by trained classical composers for concert performances. Songs are performed live and recorded. Songs may also appear in plays, musical theatre, stage shows of any form, and within operas.

Billboard

A billboard (also called a hoarding in the UK and many other parts of the world) is a large outdoor advertising structure (a billing board), typically found in high-traffic areas such as alongside busy roads. Billboards present large advertisements to passing pedestrians and drivers. Typically showing large, ostensibly witty slogans, and distinctive visuals, billboards are highly visible in the top designated market areas.

The largest standard-size billboards, known as Bulletins, are located primarily on major highways, expressways or principal arterials, and command high-density consumer exposure (mostly to vehicular traffic). Bulletins afford greatest visibility due not only to their size, but because they allow creative "customizing" through extensions and embellishments.

Posters are the other common form of billboard advertising, located mostly along primary and secondary arterial roads. Posters are a smaller format than bulletins and are viewed principally by residents and commuter traffic, with some pedestrian exposure.

United States

Coordinates: 40°N 100°W / 40°N 100°W / 40; -100

The United States of America (USA), commonly referred to as the United States (U.S.) or America, is a federal republic composed of 50 states, a federal district, five major territories and various possessions. The 48 contiguous states and Washington, D.C., are in central North America between Canada and Mexico. The state of Alaska is in the northwestern part of North America and the state of Hawaii is an archipelago in the mid-Pacific. The territories are scattered about the Pacific Ocean and the Caribbean Sea. At 3.8 million square miles (9.842 million km²) and with over 320 million people, the country is the world's third or fourth-largest by total area and the third most populous. It is one of the world's most ethnically diverse and multicultural nations, the product of large-scale immigration from many countries. The geography and climate of the United States are also extremely diverse, and the country is home to a wide variety of wildlife.