This might help clear some things up! When "Your All I Need To Get By" was Recorded, Tammi had just recovered from her first operation! 8 of the 10 disputed tracks or "Easy" were done in March of '69 around the same timeframe implied in the Ebony article! By that time, Tammi had had 6 operation with the last one taken place two months prior. According to the DFTMC,She and Marvin did several tracks with Bristol for the "Your All I Need" album in Jan. of '68 a month after the sessions for "It's Been A Long Time Happenin'"

So Tammi didn't record as often as she did when she was healthy, but she recorded when it was convenient for her to do so. It's not like she was completely bedridden the last two years of her life.