I'd disagree that Melody Maker wasn't for musicians. It certainly was and they covered everything.
MM's greatness was in the sensible, adult and informative writing AND the classifieds. The ad's covered everything and if you were looking for a band then the Musicians Wanted section was the place to be on a Wednesday afternoon.
Everyone advertised for band members in the back of MM, including Fleetwood Mac, Free, Tony Newman, Supertramp, Zoot Money, Atomic Rooster, Python Lee Jackson and many more.