T. Rex had a very unique sound.
Three members, including front man Marc Bolan, met early deaths....two to motor vehicles accidents and one to some unreported illness. Bolan wrote the songs and the music. This song (off of the 1971 release Electric Warrior) is a pensive piece that seems to highlight the writer's sense and understanding of his own mortality.
I have to wonder if he (like many others) had some weird premonition of his early fate, when he was writing it: