You know,in an opposite case,the song,"You'll Still Be needing Me",from Songbook was recorded in the mid-60's. ...but somehow to me,it sounds like it could have been on any LP from ..."Read My Mind" to "Sundown".
When I first heard it 3 years ago,it sounded like it was "brand new"!
As for ..."Cape Horn",I think it's the "sailor's slang" lyrics that make it sound older "you old sea dogs!" :D