The cause of death was listed as complications recovering from surgery.
Jerry Wexler loaned the duo to Atlantics southern production arm, Stax Records.
However, Curtis was stabbed to death on Aug. 13, 1971, resulting in the albums shelving.
Sam Moore, far left, with partner Dave Prater in late 1960s and onstage circa 2019Everett Collection; Getty Images
The Curtis album,Plenty Good Loving, was finally released in 2002.
He was nominated for a Grammy Award with Billy Preston on their duet You Are So Beautiful.
