From Latin cant, a song is what is sung (produces sounds melodious). It is a composition in verse or made in a way that can be put into music . The word song also allows naming the set of lyrics and melody that depend on each other to exist, since they were created to be presented at the same time.

You could say that the music offered by the industry cultural It is usually structured in songs. Artists, whether soloists or groups, compose songs and record them in different formats. The next step may be to market them through discs or through digital technologies, such as selling through Amazon, iTunes or independently, offering them on their own portal.
On the other hand, songs are the main component of concerts or recitals of popular music. A soloist or a band, when performing live, chooses certain songs to perform in front of their audience. Generally, these events are used to promote new material, and recently published songs are usually interspersed with those already known, to liven up the impact and retain the interest of those who follow the artists for their first works and do not feel comfortable with the changes .
Through the songs of fashion It is possible to analyze the portion of the society that consumes them, since popular music is the living reflection of the tendencies, of the concerns, of the mood of the people at a certain moment in history. In general, it is common for groups to show more interest in social issues, while soloists are inclined to love and personal experiences, which give a relatively individualistic approach, although this is not always the case.
With regard to classifications, there is a very little precise division that puts aside music Pop and on the other, the Rock. Thanks to the flow of information it offers us Internet, it is increasingly common for different musical genres to be distinguished, since it is incorrect to confuse the R&B (Rythm and Blues) with Pop or Soul, just like him Heavy metal with the Rock And Roll.
People usually have a preference for a series of characteristics that occur only in certain genders. For example, there are those who do not support a song if it does not show a certain progression, a growth that takes it from a fairly quiet beginning to a burst, usually characterized by sharp notes. This need for a climax Automatically discards a large number of styles that aim to produce other sensations in its listeners, either because they focus more on the text or because it has a message that does not merit the above-mentioned stunts.
In the Opera, although the pieces that usually enjoy more popularity are called ariasThere are also songs, among many other types of composition.
In ancient times, a song was a poetic composition that could belong to different genres, tones and shapes. A song or singing deed it was a brief composition Poetics put into music to sing or to be adapted.
In another sense, it is known as a song a series of phrases that are repeated insistently and that end up causing a nuisance in the receiver: "I'm tired of you always coming back with the same song", "Again the song of your problems".
Finally, we can mention that a song is a pretext or unfounded news : “Do not want to convince me with songs, I already discovered all the true", "I swear they are not songs, I am telling you what I have seen with my own eyes".