“The Temptations released one of the enduring singles of the rock and roll era when ‘My Girl’ topped the Billboard Hot 100 and R&B charts,” (Seattle Post Intelligencer). “The song was propelled by the sweet tenor voice of David Ruffin. During his time with the Temptations he provided the lead vocals for such hits as ‘Ain’t Too Proud To Beg,’ ‘All I Need,’ and ‘Beauty Is Only Skin Deep.’ His time with the group was short, 1964-1968, but he would help leave a lasting legacy and be inducted into the Rock and Roll Hall of Fame … While he would never be as commercially successful as during his time with the Temptations, his solo releases would sell moderately well and produce some fine music.
His debut release, My Whole World Ended, (was) released during the spring of 1969. It was more emotional and rawer than the smooth soul sound of his former group. The only song that runs counter to this formula was the hit single “My Whole World Ended (The Moment You Left Me),” which was originally written for the Temptations. It has a smooth Sam Cooke quality as it just flows along.”
In addition to typical R&B instrumentation, smooth strings and piccolo arpeggios(!) are prominently featured on the mid-tempo title track. 2:13 brings brief instrumental chorus as well as a half-step modulation.