To be fair, I think Walt's got you there, too. Prov. 11:1 contrasts a "false balance" with "just weights." Literally, it's saying dishonest weights and measures are an abomination.
To my ears, you're saying a "false balance" is something like swinging the pendulum too far from the happy medium to the opposite extreme. On the other hand, if by "false balance" you mean something like "false/unbiblical/extreme/double standards," then you'll get no argument from me; I think that's a fair application of the proverb.
My first exposure to the "backbeat" argument was in the early 1990s, in IBLP (Bill Gothard) material, when it was used for the young adults at a church I briefly attended. They used a similar argument to your "voodoo" one, except that the backbeat was supposedly the beat used by African shamans to drive evil spirits into people. The answer is the same: a musicologist will tell you that for every African village, there was a different way of summoning spirits: a drum, a stringed instrument, a rattle. (There's also an implicit racism in the accusation; it's a more subtle way of calling the backbeat "jungle music.")
I remember reading somewhere that James Brown hired musicians who were accustomed to playing in churches, and they initially had a hard time playing "on the 1" (the heavy downbeat that's characteristic of funk), because their church music was all based on a backbeat rather than a downbeat.
I did read what you said here though my point about verses either being
literal by exclusivity to the situation,
literal by principle, or
figurative, still stands and wasn't yet addressed. Also, the "just weight" (not weights) in Prov. 11:1 is simply stating the exact same principle as the initial statement by inverse: if something is in balance (not just money), it is literally "a just weight", by contrast, "a false balance" is an abomination (the same principle by inverse statement). Actually, the argument that this statement is exclusive to money is weaker because it means only money needs to be in balance (by exclusivity), so everything else in life might be wildly out of balance and that's OK, as it can only be about money.
As the statement itself is a principle, God may use money as the supporting example to teach a broader lesson about balance that is equally applicable to numerous correlating aspects of life.
Really interesting insight on the music, btw, but just to point out, Backbeat and Downbeat are part of the same thing. Downbeat is the 1 of the backbeat. The snare on the offbeat simply balances out the strong entrance of the 1 by releasing some of the tension created by the tight kick, as the snare is typically looser and rings out more compared to the tightness of the kick drum. If we take away the snare, all you have is tension building in the same low frequency level over and over with back-to-back tight kicks (which ironically is a common method used to build tension in pre-sections of songs before letting the drums breathe with the snare, or sometimes open hi-hats).
Also I should note that chord tension and release often works inverse to the drums for natural reasons. A chord might release tension on the 1, but doing so with power requires a strong foundation to hold firm the base (or bass, both apply) in the low frequency (the kick drum). If it's a big release, the kick will usually be accompanied by a crash cymbal to release tension alongside the chord in the higher frequencies. Composers have to think both vertically through the frequency ranges and horizontally through time, and since music is not static but always in motion, there will be a constant ebb and flow of tension and release.
Also, the mention of African drummers brings to mind the documentary "EE-TAOW", which films the live conversion of an entire tribe who's primary (if not only) familiar instruments were drums. After converting, they start playing the drums and worshipping Jesus for like 3 hrs straight (from what I remember). I think God honored their hearts here. I have numerous close black friends who have literally told me drums and rhythm speak to black people not because of voodoo, but because it hits them in the solar plexus and it moves them in the heart. I produced a few tracks with strong downbeat and their responses were often "that hit me right here man" pointing to their chest. You'll notice how (generally speaking, not stereotyping everyone) black people generally keep it real and strongly value honest, straightforward communication, whereas some other ethnicities might (generally) operate more out of the tact of their headspace (evidence in their music too: less bass, which resonates in the chest, and more mid-to-high frequencies that resonate in the head: and mixing engineers will literally mix different genres with different emphases on the same instruments in different frequency ranges). Just to caveat, I'm not a racist, there are all kinds of people in all races that might not fit any of this at all, I'm just saying these are general themes told to me by my black friends themselves, who I get along well with. And, we always have to keep in mind the Biblical use of timbrels and dancing: which prove there ARE drums and dancing that is godly, and shamans using "only drums" for their voodoo doesn't discount this point.