He began playing piano in the fourth grade and by the age of 12 was organist for three different churches, including his father's.
The roster of musicians with whom Carmon has performed, toured, written or produced is lengthy: Eric Clapton, Babyface, Stevie Wonder, Paul McCartney, Queen Latifah, Marcus Miller, Sheryl Crow, Bob Dylan, Gladys Knight, B.B.
King, Jamie Foxx, Earth, Wind & Fire, Carlos Santana, Herbie Hancock, Michael McDonald, Mary J. Blige, David Sanborn and more.
Most recently, he provided arrangements, piano and keyboards for the film adaptation of Dreamgirls with R&B producers, The Underdogs, and he took part in the 50-year-old revision of "Lady Sings the Blues".
He joined Clapton's band for a 14-date Ireland / UK tour with performances in Dublin, Liverpool, Manchester and an 11-night residency at London's Royal Albert Hall in May 2009.