If you are looking for a "paper" or deep dive into the original rock version, it is the title track of their 1974 debut album. Written by Paul Rodgers and Simon Kirke .
Known for its "dark" and atmospheric opening piano chords (played by Rodgers) and a slow, driving "blues-rock" tempo. Bad Companies (Original Mix)
How members of Free, Mott the Hoople, and King Crimson formed a cohesive "no-frills" sound. If you are looking for a "paper" or