I've found chasing the melody around a quite difficult prospect with CBS, as much as I love their stuff. We put together a two-part version of "Lay me low", but didn't make any attempt to copy their arrangement (there are three of them and only two of us).

It should be possible to do the (admittedly labourious) "sit at the piano and figure out the notes while constantly pausing the tape" method of transcription.

Best of luck.