Erotic art

Defining erotic art is difficult since perceptions of both what is erotic and what is art fluctuate. For example, a voluptuous nude painting by Peter Paul Rubens could have been considered erotic or pornographic when it was created for a private patron in the 17th century. In a different context, a sculpture of a phallus in some African cultures may be considered a traditional symbol of potency though not overtly erotic.
In addition, a distinction is often made between erotic art and pornography (which also depicts scenes of love-making and is intended to evoke erotic arousal, but is not usually considered art). The distinction may lie in intent and message; erotic art intended as pieces of art, encapturing formal elements of art, and drawing on other historical artworks. Pornography may also use these tools, but is primarily intended to arousal one sexually. Nevertheless, these elements of distinction are highly subjective.

Sports photography

Sports photography refers to the genre of photography that covers all types of sports.

The equipment used by a professional photographer usually includes a fast telephoto lens and a camera that has an extremely fast shutter speed that can rapidly take pictures.
Many amateur photographers now have access cheap digital single-lens reflex cameras (D-SLR). With a little technique, the amateur photographer can occasionally capture images that rival a professional sports photographer. It is now perfectly common to see soccer moms and football dads carrying around an impressive digital camera and reasonably long, fast lens, looking for that action shot of their son or daughter that will grace their mantlepiece for many years to come.

Music and politics

Folk music has a tradition of political discontent, with songs sung to commemorate popular uprisings and strikes, and to protest against injustice and social inequity.
Classical music has often been used to glorify political leaders, largely because the patronage of the rich or powerful was the main source of income for composers in previous centuries; see for example Gott erhalte Franz den Kaiser, French overture. In recent times this has become less prevalent; the Master of the Queen's Music in the U.K., for example, is no longer required to compose hagiographies to Elizabeth II. Even in the past classical composers registered dissent: Beethoven removed a dedication to Napoleon from his Third Symphony to protest against Napoleon's crowning himself Emperor.
Popular music since the middle of the 20th century has increasingly featured politically-inspired lyrics. It has often been used to express anti-war sentiments; Jimi Hendrix famously satirised the U.S national anthem, "The Star-Spangled Banner," through the use of extreme distortion and feedback as a protest against the Vietnam War. The majority of political popular music has an anti-establishment or left wing perspective. Conservative and libertarian lyrics are mainly found in country music. In western popular culture, it is rare except in times of war for pro-establishment music to gain a foothold in the popular consciousness. The punk rock genre was overtly political: its genesis in the mid-1970s was as a reaction to the aloofness of the bands in the rock scene at that time, and its lyrics often espoused anarchy or revolution. This position was epitomised by artists such as Crass and the Dead Kennedys, who were inspired by anarcho-syndicalism (see Punk ideology). Today, working class and leftwing political themes, commentary and beliefs are still common with many popular and underground modern day street punk, hardcore punk and oi! bands; such as the Dropkick Murphys, Leftover Crack, Rancid, Oi Polloi, The Bruisers and The Business to name but a few. Music of black origin has a long tradition of protest, from the blues performers of the early 20th century, up to and including the rap and hip-hop more recently popular.

Rock concert

The term rock concert refers to a musical performance in the style of any one of many genres inspired by "rock and roll" music. While a variety of vocal and instrumental styles can constitute a rock concert, this phenomenon is typically characterized by bands playing at least one electric guitar, an electric bass guitar, and drums. Often, two guitar players share the tasks of rhythm and lead guitar playing. But rock concerts also have a social history which greatly informs the perception of the linguistic term and the activity itself.
During the 1950s, several American musical groups experimented with new musical forms that fused country music, blues, and swing genre to produce the earliest examples of "rock and roll." The coining of the phrase, "rock and roll," is often attributed to Alan Freed, a disk jockey and concert promoter who organized many of the first major rock concerts. Since then, the rock concert has become a staple of entertainment not only in the United States, but around the world.
Rock concerts are often associated with certain kinds of behavior. Dancing, shouting, singing along with the band, and ostentatious displays by the musicians are common, though some very successful rock bands have avoided gratuitous flash in favor of understated performances focusing on the music itself. Even so, rock concerts often have a playful atmosphere both for the band and the audience.
Like rock music in general, rock concerts are emblematic of American culture's waning formality. Such concerts were crucial to the formation of youth identity in the U.S. during a time of social revolution, and have continued to represent elements of society frequently seen as "rebellious," especially against the strictures of mid-twentieth-century social normativities. One of the most well-known rock concerts was undoubtedly Woodstock, and millions of much smaller rock concerts go on every year.