Blind Willie Johnson was an American gospel blues singer, guitarist and evangelist. His landmark recordings completed between 1927 and 1930—thirty songs in total—display a combination of powerful "chest voice" singing, slide guitar skills, and originality that has influenced generations of musicians. Even though Johnson's records sold well, as a street performer and preacher, he had little wealth in his lifetime. His life was poorly documented, but over time, music historians such as Samuel Charters have uncovered more about Johnson and his five recording sessions.

Slide guitar is a technique for playing the guitar that is often used in blues music. It involves playing a guitar while holding a hard object against the strings, creating the opportunity for glissando effects and deep vibratos that reflect characteristics of the human singing voice. It typically involves playing the guitar in the traditional position with the use of a slide fitted on one of the guitarist's fingers. The slide may be a metal or glass tube, such as the neck of a bottle, giving rise to the term bottleneck guitar to describe this type of playing. The strings are typically plucked while the slide is moved over the strings to change the pitch. The guitar may be placed on the player's lap and played with a hand-held bar.