Carter Family picking

Maybelle's daughter June Carter Cash remembered her mother's playing technique this way: "She'd hook that right thumb under that big bass string, and just like magic the other fingers moved fast like a threshing machine, always on the right strings, and out came the lead notes and the accompaniment at the same time. The left hand worked in perfect timing, and the frets seemed to pull those nimble fingers to the very place where they were supposed to be, and the guitar rang clear and sweet with a mellow touch that made you know it was Maybelle playing the guitar." The Carter Family's music is usually played in time time and is "slightly uptempo". The Carter scratch, also known as the Carter lick, church lick or thumb brush technique, is based on old banjo frailing style. Flatpicking expert Eric Thompson stated that Maybelle's style "smoothly combines rhythm and lead playing, the two intertwining to form a nicely melodious coherent whole." The style mimics the rhythm of African American music including jazz and bluegrass with its steady upbeat, also known as a backbeat. Maybelle often played in the keys of C and F, which she tuned down to remain in C for a more comfortable singing register. A few songs, including "Lonesome Homesick Blues" and "Coal Miner’s Blues", were dropped to D where the low E-string is tuned to a D. In addition to her iconic Carter scratch, Maybelle played in several other styles, one of which was played on the steel guitar. Mike Seeger, archivist and member of the New Lost City Ramblers, described her famous Carter scratch in detail: "She plays the melody mostly on the three bass strings, although she does sometimes go to the third and second strings. She plays in a four-pattern measure. She would play on the one count with her thumb downward, and then she would brush upward with her first finger on the treble strings. Then down on the third count, brushing with her first finger, and up with her first finger on the fourth count."

The Carter scratch, and more generally Maybelle Carter, have had a great impact on multiple genres of music including country, folk, rock, and bluegrass. Maybelle's guitar style has been widely copied and is credited with "transform[ing] the instrument from background rhythm to the dominant lead sound in pop culture." The Carter's music bridged the gap between traditional, Appalachian folk music and new "hillbilly music", which would evolve into country music. For her contribution to country music, Maybelle was the first woman inducted into the Country Music Hall of Fame. In the 1960s when folk music grew in popularity, Maybelle's picking style was resurrected. Until this time, Maybelle did not realize the significance of her music, stating that she was "just playing the way I wanted to and that's it." Maybelle was "proud and happy" that her style had become influential in folk and country music because it would keep the genre alive. In 1962, Maybelle played with bluegrass star Earl Scruggs, who grew frustrated that he could not reproduce her distinctive style, yet Maybelle picked it effortlessly in the studio for him. That same year, Maybelle accompanied the New Lost City Ramblers to the Newport Folk Festival, where she led workshops to teach young musicians the Carter scratch. Maybelle also played with the Nitty Gritty Dirt Band, who admired her musical aptitude, on their famous album Will the Circle Be Unbroken. John McEuen, founding member of the band, remarked that Maybelle "took the guitar and she used it in a way that nobody had thought of before." Maybelle's great niece Rita Forrester once remarked that "I'm sure that anybody who has ever played a guitar has used something of Aunt Maybelle's—they've had to. There's no question in my mind…it would have been hard for [anyone] not to be touched by the way she played." Many folk and country artists acknowledge Maybelle's influence on their music including: Perry Como, Doc Watson, Chet Atkins, Elvis Presley, Bob Dylan, Marty Stuart, Emmylou Harris, Woody Guthrie, Earl Scruggs, Bill Monroe, and Johnny Cash. Doc Watson learned the Carter scratch as a boy and adapted it into his own flatpicking style, which was influential in its own right. Woody Guthrie based his most famous song "This Land is Your Land" on Maybelle's lick as well.