Hi Sam,

This subject came up not long ago:

http://www.pgmusic.com/forums/showthreaded.php?Cat=0&Number=287862&page=0&vc=1


A couple of thoughts:
- I find, listening to many big selling pop albums of the day (Taylor Swift, Bruno Mars...), it is not unusual for 2 or 3 songs to be built around this structure.

- are there any recorded instances of songs earlier than Let it Be following this pattern. If not, then it could be that Paul McCartney's reputation should be even greater than it already is.

Marc