I don’t agree with the use of the phrase “musical abuse.” I have never seen this phrase in any church documents or any legitimate articles, or heard any priest or bishop use the phrase. Just because someone creates a phrase and uses it in their little part of the world and on CAF, doesn’t mean it’s correct for all the world.
Instruments used in dance music–you mean, all the orchestral instruments?
No…the ones I listed. No need to interpret multiple paragraphs out of my 2 sentences.
And what kind of dance?
**Any dance… **
Horns–so that means we should get rid of all those “horn settings” on the pipe organ, right? Trumpet, trombone, etc.
How about the winds? Bassoon, flutes, recorder, etc.–off the pipe organ, too?
In other words, only the principles, because they are the “purest” organ sounds, right? None of that other “worldly” stuff?
You do realize that a good pipe organ includes settings for reeds, brass, strings, etc.–all those “instruments.” So if it’s OK for the pipe organ to “imitate” instruments in the Mass, why isn’t it OK for the instruments themselves to be played in the Mass? (I’m taking pipe organ lessons, BTW, from an excellent teacher with a doctoral degree and 50 years of experience in liturgical settings.)
Good for you! Must be kind of fun. Yes- I know the pipe organ has different sounds. At our NO parish, we have nobody to play the pipe organ. 
Piano and choir is totally sufficient. I like a good classical guitar.
You think the phrase “God is great” is “lite?” How about “Great is the Lord.” (Psalm 48:1)? Too “lite” for you? Or is it the order of the sentence that changes it from “lite” to “heavy?” How about, “Awesome our God is”. Personally, I think this sounds like Yoda. But it is rather grand-sounding. Maybe it’s just that American English is so common and “peasant” compared to the Queen’s English. But that’s just personal opinion. God does not consider Americans to be “less” than the English just because we don’t talk the way they do.
As for your second point, I think before people can start saying that something is theologically questionable, there would have to be a person or organization that has been given authority by the Church to make those judgements and declare them to all the Church.
It’s just too easy for people to tear a perfectly good song (that they personally don’t like) to pieces and find some little point of contention and pick it to shreds. E.g., “Amazing grace, how sweet the sound, that saved a wretch like me”–too many Catholics assume that this means that all humans are wretches, and therefore the hymn is contrary to Catholic teaching. But that’s just their opinion, and who exactly are they to present their opinion as absolute truth? Nope, there has to be an Authority, not just my fellow parishioner or, heaven forbid, li’l ol’ me!