I'm very sorry to be critical, as I do appreciate the work you guys do at phish.net, but as a musician and music educator your statement about Tweeprise vs Tweezer make no sense musically:

Musically, D is four steps higher on the scale than A. So the underlying pitch for “Tweeprise” is higher than for “Tweezer,” and this elevation increases that sense of tension. Never forget that these guys are learned, well versed musicians.

Simply playing something "higher", on its own, doesn't add tension. Saying "the scale" is technically incorrect as well. What type of scale are you referring to? There are many. If you are referring to an A major then yes D would be the higher pitch in ascending order, But if it is a C major scale, then A would be higher than D when ascending the scale.

Either way, I bring this up because I enjoy the reviews on this site, but tend to cringe when I see the references to music theory because many of them are not true. Please be more careful in the future and keep up the good work.