I had never heard "Something's On Your Mind" by D Train until I heard Miles Davis' cover, then a friend of mine in college recognized the song and had no idea Miles had covered it. I told him I didn't know it was cover, he told me it was from D Train, I told him I never heard D Train's version & he was shocked.
We went back to his apartment where he dug out his old D Train vinyl & played it for me.
Godo exchange of music we had there.