Rita started out (in her time associated with Ray Charles) as a Raelette in 68. She told me (@ Prestatyn) that he strung her along about recording her as a solo artist for a fair while (they were touring none stop at the time). He then did the album project on her but put it out without any promotion at all. She had been promised a better effort & so confronted him. This resulted in a big row & so she quit his entourage & left the record company in 69.
With the bad blood between the two, I can't see any reason at all why Ray would put any tracks by her out around 4 years later ... so 'the story' of it possibly being a legit 45 doesn't have any legs at all.