"Madison Blues" is a blues

Blues

Blues is the name given to both a musical form and a music genre that originated in African-American communities of primarily the "Deep South" of the United States at the end of the 19th century from spirituals, work songs, field hollers, shouts and chants, and rhymed simple narrative ballads...

 song

Song

In music, a song is a composition for voice or voices, performed by singing.A song may be accompanied by musical instruments, or it may be unaccompanied, as in the case of a cappella songs...

 recorded by singer/guitarist

Guitarist

A guitarist is a musician who plays the guitar. Guitarists may play a variety of instruments such as classical guitars, acoustic guitars, electric guitars, and bass guitars. Some guitarists accompany themselves on the guitar while singing.- Versatility :The guitarist controls an extremely...

 Elmore James

Elmore James

Elmore James was an American blues guitarist, singer, songwriter and band leader. He was known as "the King of the Slide Guitar" and had a unique guitar style, noted for his use of loud amplification and his stirring voice.-Biography:James was born Elmore Brooks in the old Richland community in...

. It appears on the albums The Sky is Crying and Whose Muddy Shoes? (1969). The song was covered

Cover version

In popular music, a cover version or cover song, or simply cover, is a new performance or recording of a contemporary or previously recorded, commercially released song or popular song...

 by George Thorogood

George Thorogood

George Thorogood is an American blues rock vocalist/guitarist from Wilmington, Delaware, United States, known for his hit song "Bad to the Bone" as well as for covers of blues standards such as Hank Williams' "Move It On Over" and John Lee Hooker's "House Rent Boogie/One Bourbon, One Scotch, One...

 and the Destroyers on their eponymous first album (1977), on the 1986 album Thorogood Live and at the Philadelphia Live Aid

Live Aid

Live Aid was a dual-venue concert that was held on 13 July 1985. The event was organized by Bob Geldof and Midge Ure to raise funds for relief of the ongoing Ethiopian famine. Billed as the "global jukebox", the event was held simultaneously in Wembley Stadium in London, England, United Kingdom ...

 concert

Concert

A concert is a live performance before an audience. The performance may be by a single musician, sometimes then called a recital, or by a musical ensemble, such as an orchestra, a choir, or a musical band...

. Fleetwood Mac

Fleetwood Mac

Fleetwood Mac are a British–American rock band formed in 1967 in London.The only original member present in the band is its eponymous drummer, Mick Fleetwood...

's 1969 cover of the song with Willie Dixon

Willie Dixon

William James "Willie" Dixon was an American blues musician, vocalist, songwriter, arranger and record producer. A Grammy Award winner who was proficient on both the Upright bass and the guitar, as well as his own singing voice, Dixon is arguably best known as one of the most prolific songwriters...

 and J. T. Brown

J. T. Brown

J. T. Brown was an American tenor saxophonist of the Chicago blues era. He was variously billed as Saxman Brown, J.T. Brown and Bep Brown.-Biography:...

 appears on the albums Blues Jam at Chess and Fleetwood Mac in Chicago/Blues Jam in Chicago, Vols. 1–2. Their 1970 live performance was also included on the triple CD Madison Blues Live, released in 1994.

It has been suggested that The Beatles

The Beatles

The Beatles were an English rock band, active throughout the 1960s and one of the most commercially successful and critically acclaimed acts in the history of popular music. Formed in Liverpool, by 1962 the group consisted of John Lennon , Paul McCartney , George Harrison and Ringo Starr...

 song, "For You Blue

For You Blue

"For You Blue" is a Beatles song written by George Harrison. It was the B-side to "The Long and Winding Road" and the eleventh track on the Beatles' final LP release, Let It Be...

" on the album Let it Be was modelled on "Madison Blues", since part way through George Harrison

George Harrison

George Harrison, MBE was an English musician, guitarist, singer-songwriter, actor and film producer who achieved international fame as lead guitarist of The Beatles. Often referred to as "the quiet Beatle", Harrison became over time an admirer of Indian mysticism, and introduced it to the other...

is heard to chuckle "Elmore James' got nothing on this baby!". However, although the keys are the same, the songs are not significantly similar.