Because the Concert in Central Park was originally intended to be a Paul Simon solo gig, many of the featured songs are from Simon’s solo albums.
I imagine the setlist was changed a bit once Garfunkel’s participation was assured (‘Old Friends,’ for example, had to have been an addition meant for the duo) but many of the tracks would likely have been performed whether Garfunkel showed up or not. And that gives listeners the treat of hearing what Paul Simon’s solo records might have sounded like had he never split with Garfunkel.



