I like to dig the used records that are dirt cheap to find unexpected gold. I'm not a music historian, also don't look to make a buck. So finding all these pieces I knew by ear but not by name, in random records from second hand stores, can be a lot of the fun of the hobby. It is essentially the vinyls greatest hits bins from a dying generation at these places, so it makes a lot of sense to run into familiar tunes. Sometimes it's an obscure beat that was just one small sample of a song, or is a whole known track.
Here is one I found tonight while searching around online, Pete Drakes - Forever
Song 3 Sleep Walk I'm confident most will know from some contemporary media.
Song 4 Melody of Love is no different, it seems to be a tune I have heard many times before.