Spotify 70s Song Finder

This agent builds song lists of mellow soft rock from about 1974 to 1979. You get a numbered list of 100 songs by default, about half well-loved hits and half rarer favorites like album tracks, minor chart hits and one-hit wonders. The rarer picks are starred, and the list is ordered so it flows well, with no repeats and no more than three songs per artist. It also remembers what it has already given you, so new lists stay fresh.