In addition to the songwriting prowess of the writers and producers, one of the major factors in the widespread appeal of Motown's music was Gordy's practice of using a highly select and tight-knit group of studio musicians, collectively known as "The Funk Brothers", to record the instrumental or "band" tracks of a majority of Motown recordings. Among the studio musicians responsible for the "Motown Sound" were keyboardists Earl Van Dyke, Johnny Griffith, and Joe Hunter; guitarists Joe Messina, Robert White, and Eddie Willis; percussionists Eddie "Bongo" Brown and Jack Ashford; drummers Benny Benjamin, Uriel Jones, and Richard "Pistol" Allen; and bassists James Jamerson and Bob Babbitt. The band's career and work is chronicled in the 2002 documentary film Standing in the Shadows of Motown which publicised the fact that these musicians "played on more number-one records than The Beatles, Elvis, The Rolling Stones, and The Beach Boys combined."
Much of the Motown Sound came from the use of overdubbed and duplicated instrumentation. Motown songs regularly featured two drummers instead of one (either overdubbed or in unison), as well as three or four guitar lines. Bassist James Jamerson often played his instrument with only his index finger, and created many of the basslines apparent on Motown songs such as "You Can't Hurry Love" by The Supremes.