Marvin Sewell was born and raised in Chicago. He learned how to play the guitar by hanging out with many Chicago basement bands. At that time, Marvin was exposed to a variety of styles of music such as: Blues, Gospel, and Soul. Rock, and Fusion. At the same time, he played in a Catholic church in a guitar band playing acoustic guitar. A few years later he became interested in Jazz. In high school, he started playing with the Malcolm X Community College Big Band. From there he started playing with many famous local Chicago musicians such as Von Freeman, Ramsey Lewis, Billy Branch, Jody Christian, Big Time Sarah, and Barbara La Shore, He attended Roosevelt University in Chicago where he studied Composition.
Marvin moved to New York in 1990