"The Raven"

I figured out the melody for the vocoder part in the first two verses of "The Raven" to-day* and noticed a motif.  I thought I'd mentioned this before, but I couldn't find it in any old posts: in the first verse the bass part has a three-note figure (usually A notes), which is apparently supposed to represent the three syllables of the raven's "Nevermore."  There are also three-note figures of the same pitch in the vocoder melody.

I might have the notes' positions within the measures wrong, but the first verse is something like:

The first measures in the second and fourth lines have three C notes and three A notes respectively.  Like the bass part, these three-note figures seem to represent (or maybe even foreshadow) the three-syllables of "Nevermore."  Additionally, that this vocoder melody and the bass part both have three-note figures of the same pitch gives the song some cohesion.

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*It wasn't until drafting this post that I discovered that I'd already figured it out once.  I'd forgotten it and hadn't written it down though, so it was like learning it from scratch.