Knock-out classic from 1973, as used in J Dilla’s masterful “Stop”.
There’s a haunting tone to that guitar twang which sets the scene at the start, which then gets subsumed into Warwick’s lovesick vocals and the soaring string arrangement. Later on, the guitar returns, transformed into a brittle solo instrument, perfectly mirroring the anguish in Warwick’s voice.
The other thing you notice is the drums, which could themselves have appeared on a Dilla track. There is a viscous quality to them, which suggests they might be rolling off the beat when in fact they remain totally in the pocket.