The electric mandolin is an instrument tuned and played as the mandolin and amplified in similar fashion to an electric guitar. As with electric guitars, electric mandolins take many forms. Most common is a carved-top eight-string instrument fitted with an electric pickup in similar fashion to many archtop semi-acoustic guitars. Solid body mandolins are common in 4-, 5-, and 8-string forms. Acoustic electric mandolins also exist in many forms.