The term EP was first introduced in the 1950s to refer to a new record format.
These records contained more music than a single, but less than an album, and were more time and cost-effective to produce than the more common LPs (Long Play) at the time.
EPs were a result of the competition between different record companies.
Even in today's predominantly digital market, the term has remained and generally describes a music format that is longer than a single, but shorter than a full album.
Typically, an EP contains between 3 and 5 tracks and has a total running time of about 15 to 30 minutes. However, in the age of digital streaming, these characteristics are not binding and can vary greatly.
EPs offer artists the opportunity to release new music without the commitment of a full album. They are often a means to test new songs and measure the reaction of fans.