The Moody Blues' "So Deep within You"

When I listened to the Moody Blues' On the Threshold of a Dream last month, the recurring guitar riff in "So Deep within You" caught my ear.  I figured out how to play it and confirmed that - save for the key - it's identical to a part in "Telescope (Mr. Galileo)," which was recorded by Chris White and Rod Argent shortly after the Zombies broke up.  (There are two versions of "Telescope (Mr. Galileo)" on Into the Afterlife, but this riff is present only in the second version [track #18], the one with fuzz guitar.)

(click the image to enlarge it)
(standard disclaimer that since I did the notation myself, it might be wrong)

I didn't know how to indicate it in the notation, but the second note in each pair of eighth notes is a hammer-on.

In the Zombie Heaven liner notes, Paul Atkinson (the Zombies' guitarist) says that the Zombies were friends with the Moody Blues and used to go to their parties (p. 31).  While that provides evidence that the Zombies and the Moody Blues knew each other, it's slightly misleading as far as guitar players, since Atkinson didn't play on "Telescope (Mr. Galileo)."  The Into the Afterlife liner notes explain that it was Mac McLeod.

The chronology is also troublesome.  The Into the Afterlife liner notes say that the session at which "Telescope (Mr. Galileo)" was recorded was in March 1968.  On the Threshold of a Dream came out in April 1969.  But "Telescope (Mr. Galileo)" wasn't released until the Into the Afterlife album in 2007.  So while it would appear that there was some mixing of influences since the songs originated only about a year apart, since the riffs are so similar (with the same accidental even), and since the bands knew each other, it doesn't seem possible that the Moody Blues could have known "Telescope (Mr. Galileo)."  Apparently, the similarity is just a coincidence.