This theme, written by Roger Neumann*, was played for many decades every time that Ray Charles entered the stage.** The audience-tape of the San Carlos concert in 1971 captured one of the few known full versions.
Ray Charles - piano; the line-up of the band must have been very similar to the known personnel of the October 1971 concerts at La Salle Pleyel in Paris.
San Carlos, 1971:
* Many thanks to Tony Horowitz for naming the tune, and for the attribution to RN. ** To be precize: the last 2 choruses of the shout were used as Ray's walk-on.