When the
guitar was electrified in the 1930s, it allowed solos on the instrument to be more audible, and thus more prominently featured. In the 1940s, players like
Robert Nighthawk and
Earl Hooker popularized electric slide guitar; but, unlike their predecessors, they used standard tuning. This allowed them to switch between slide and fretted guitar playing readily, which was an advantage in rhythm accompaniment.
Robert Nighthawk Robert Nighthawk (born Robert Lee McCollum) recorded extensively in the 1930s as "Robert Lee McCoy" with bluesmen such as John Lee "Sonny Boy" Williamson (also known as
Sonny Boy Williamson I). He performed on
acoustic guitar in a style influenced by Tampa Red. Sometime around World War II, after changing his last name to "Nighthawk" (from the title of one of his songs), he became an early proponent of electric slide guitar and adopted a metal slide. Nighthawk's sound was extremely clean and smooth, with a very light touch of the slide against the strings. He helped popularize Tampa Red's "
Black Angel Blues" (later called "Sweet Little Angel"), "Crying Won't Help You", and "Anna Lou Blues" (as "Anna Lee") in his electric slide style-songs which later became part of the repertoire of Earl Hooker,
B.B. King, and others. His style influenced both
Muddy Waters and Hooker. Nighthawk is credited as one who helped bring music from Mississippi into the
Chicago blues style of
electric blues.
Earl Hooker As a teenager, Earl Hooker (a cousin of
John Lee Hooker) sought out Nighthawk as his teacher and in the late 1940s the two toured
the South extensively. Nighthawk had a lasting impact on Hooker's playing; however, by the time of his 1953 recording of "Sweet Angel" (a tribute of sorts to Nighthawk's "Sweet Little Angel"), Hooker had developed an advanced style of his own. His solos had a resemblance to the human singing voice and music writer Andy Grigg commented: "He had the uncanny ability to make his guitar weep, moan and talk just like a person... his slide playing was peerless, even exceeding his mentor, Robert Nighthawk." The vocal approach is heard in Hooker's instrumental, "Blue Guitar", which was later overdubbed with a unison vocal by Muddy Waters and became "
You Shook Me". Unusual for a blues player, Hooker explored using a
wah-wah pedal in the 1960s to further emulate the human voice.
Elmore James Possibly the most influential electric blues slide guitarist of his era was
Elmore James, who gained prominence with his 1951 song "
Dust My Broom", a remake of Robert Johnson's 1936 song, "I Believe I'll Dust My Broom". It features James playing a series of triplets throughout the song which
Rolling Stone magazine called "one immortal lick" and is heard in many blues songs to this day. Although Johnson had used the figure on several songs, James' overdriven electric sound made it "more insistent, firing out a machine-gun triplet beat that would become a defining sound of the early rockers", writes historian
Ted Gioia. Unlike Nighthawk and Hooker, James used a full-chord glissando effect with an
open E tuning and a bottleneck. Other popular songs by James, such as "
It Hurts Me Too" (first recorded by Tampa Red), "
The Sky Is Crying", "
Shake Your Moneymaker", feature his slide playing.
Muddy Waters Although
Muddy Waters, born McKinley Morganfield, made his earliest recordings using an acoustic slide guitar, as a guitarist, he was best known for his electric slide playing. Muddy Waters helped bring the Delta blues to Chicago and was instrumental in defining the city's electric blues style. He was also one of the pioneers of electric slide guitar. Beginning with "I Can't Be Satisfied" (1948), many of his hit songs featured slide, including "
Rollin' and Tumblin'", "
Rollin' Stone" (whose name was adopted by the well-known rock band and the magazine), "Louisiana Blues", and "Still a Fool". Waters used an
open G tuning for several of his earlier songs, but later switched to a standard tuning and often used a
capo to change
keys. He usually played single notes with a small metal slide on his little finger and dampened the strings combined with varying the volume to control the amount of
distortion. According to writer Ted Drozdowski, "One last factor to consider is slide vibrato that is achieved by shaking a slide back and forth. Muddy’s slide vibrato was insane, both manic and controlled. That added to the excitement of his playing." == Early developments in rock music ==