Jimi Hendrix's guitar style is based from the blues style. He would almost always play his solo's from either the minor or major pentatonic scale or the blues pentatonic scales. Hendrix seemed to have three or four styles in one from Rock, Blues, Funk, Country. In his later years he even started venturing into Jazz. This is what made Hendrix's sound so unique! If you listen to the intro to Hey Joe, Hendrix uses an open E minor pentatonic scale as the basis of the lick. Below is the basic Hey Joe Lick.