Yeah, free-form FM radio was like that in the early days. Rock was their bread-and-butter, obviously (and you'd hear nearly every track off many new LPs, not just 1 or 2), but you also might hear a Bessie Smith track from the '30s, or the Andrews Sisters, or who-knows-what. And LOTS of comedy albums got played regularly, often providing the inspiration for a clever segue. When tightly-playlisted AOR formats reared their ugly heads in the '70s, a lot of the"weird" stuff fell by the wayside, even at free-form stations that were doing well.