The Rickenbacker 360 is an electric, semi-acoustic guitar made by Rickenbacker, and part of the Rickenbacker 300 Series. The instrument incorporates many features standard on Rickenbacker guitars, including a three-ply maple/walnut neck, shallow headstock angle, a thick rosewood fretboard finished with clear conversion varnish, and double truss rods. The 360 also features stereo or mono output, a body with Rickenbacker's "crescent moon" cutaway shape and rounded top edge and bound back, and an "R"-shaped trapeze tailpiece. A twelve-string version of the 360 (Rickenbacker 360/12) is available. A three-pickup version of this model is also available, the 370. Some famous recordings by The Beatles, including "A Hard Days Night", were performed by George Harrison on a 12-string Rickenbacker 360. Roger McGuinn, of the Byrds, played a 12-string Rickenbacker 370. The six-string Rickenbacker 360 model is the principal guitar of artists such as R.E.M.'s Peter Buck and Against Me!'s Laura Jane Grace. The 360 used to be produced with slanted frets for 'a natural finger angle' but this proved to be a step too far for the market and Rickenbacker started making guitars with parallel frets.