"Little One"

There are a number of instances of alliteration in "Little One" (such as "A simple song / Sweet as a symphony" and "A wonderful world / Of magic and mystery"), but what really caught my attention was a bit of the melody in the bridge.  The second line ("You give yourself to sight and sound") is sung to a melody something like:

(I don't know what key the song is in, so I just left the staff in C major and put in the accidentals.)

After I listened to the song a few times, this melody sounded familiar to me, and I eventually discovered that it's fairly similar to a melody in Bread's "If."  It's the melody to which the line "You come and pour yourself on me" is sung:

Aside from the first few notes, the rhythm of the melody in "Little One" is exactly the same, and - while the specific pitches are different - the first six notes have the same intervals: a descending whole step, down a fourth to a descending half step, and then back up to the second note of that first whole step for an-other descending whole step.

I don't know if Rod Argent is familiar with Bread or "If" specifically, but the resemblance between these two melodies would seem to suggest he is.