Fifty years to the day after Songs in the Key of Life came out, Stevie Wonder released four songs cut during those same sessions but never used: “It’s Easier,” “My Life Story of Love,” “I Can See the Sun In Late December,” and “I’m Into Livin’.” He timed the drop to 4:54am, an echo of “Fo’FiftyFo’,” the crew’s own nickname for the sessions. Two of the original album’s engineers, John Fischbach and Gary O’Adante, mixed them.