"Maggie M'Gill" is a blues-rock composition credited to all four members of The Doors -- Jim Morrison, John Densmore, Robby Krieger, and Ray Manzarek -- with Morrison writing the narrative lyrics and the rest of the band contributing the music. The song began taking shape around 1967 and was completed for the band's 1970 album Morrison Hotel. Morrison's lyrics tell the story of a woman named Maggie M'Gill whose father "was a gambling man down in old Natchez," tracing her descent into prostitution and hardship in an Old West setting. The narrative carries autobiographical undertones, with Morrison weaving in self-referential lines like "illegitimate son of a rock and roll star" and "I'm an old blues man" that blur the line between character study and personal confession, touching on themes of illegitimacy, faded revolutionary ideals, and restless wandering. Musically, the composition is built on a raw, barroom blues framework with driving guitar riffs and organ providing the harmonic foundation beneath Morrison's storytelling vocal delivery. The arrangement features a loose, swinging rhythmic feel accented by tambourine and maracas percussion. As the closing track on Morrison Hotel, "Maggie M'Gill" exemplifies the stripped-down, back-to-basics approach The Doors embraced after the elaborate orchestral production of their previous album The Soft Parade, pointing toward the even deeper blues explorations they would pursue on L.A. Woman.