A song is a musical composition that involves the vocalization of words (lyrics) and melodies at distinct and fixed pitches. Usually, a song has a clear beginning, middle and end, and it can also include repeats of verses or choruses. Many songs are also accompanied by other instruments.
A song can be a combination of melody and lyrics, or it can be made up entirely of words, such as a poem set to music. Generally, however, a song contains both. A song is protected by copyright, and both the melody and lyrics are considered to be separate works of art. This protects the intellectual property rights of the creators, and it can also prevent misuse of the work.
The words of a song can be interpreted in many ways, and the melody can be used to express emotions, tell a story, or convey a message. Songwriters try to capture a sense of meaning in the lyrics. This is often difficult because a song is so catchy, but it is important to get the message across in the most effective way possible.
A song can have any kind of structure, from Irish folk songs and African storytelling songs to Christian hymns and Heavy Metal music. It can be a cappella or accompanied by instruments, and it may last up to three minutes in length. A song can be about any topic, from a love story to a political statement.