Album Single
A single is a release of Music that is shorter than an album, LP or EP. Usually, a single will get the most Radio airplay, and will be a band's most recognized work. Singles are usually filmed with music videos. They are also probably the highest quality and most compact of all music. Singles are in a bit of a cycle becoming far more popular with the advent of digital music downloads again. Singles tend to be the dramatic begining or the climatic ending of an album.
Examples by genre: