The E Minor chord is a basic musical chord that consists of three notes: E, G, and B. It is often represented as "Em" in chord charts. This chord is commonly used in various music genres, including rock, pop, and classical, and is known for its somber and melancholic sound. To play the E Minor chord on a guitar, you typically place your fingers on the second fret of the A string and the second fret of the D string while leaving the E string open. On a piano, you can play it by pressing the E, G, and B keys simultaneously.