Four-song records, perhaps

• Four-song CDs, perhaps
• Some CDs
• Bottom line for stockholders, briefly
• Pre-album samplers: abbr
• Live iTunes recordings, often
• Midlength records, for short
• They're often released before the album
• Baker's dozen for the Beatles, for short
• Music releases such as "See.SZA.Run" and "S"

Wiktionary Word definitions in Wiktionary
n. (plural of ep English)