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Certif1ed wrote: You cannot possiby understand my musical tastes, or you would not have thought that they were confining.

I understand your statements which reflects much about your musical tastes, however confining I may find them to be... 

It reflects something about my musical tastes, that much is true.

Certif1ed wrote: Everything has a context - it is not confining at all, but may be the exact opposite. Therefore, to state that a particular style should have a context is merely an observation of its nature, and to find something out of context is a polite way of saying that it plain doesn't work.

When stating something plainly doesn't work, that's is a clear thought that cannot be misunderstood.  It is one's own opinion about the music at hand.  It doesn't mean you're opinion is true or correct.  Much of what you consider to be out of context may be as you say, the exact opposite for others who enjoy whatever it is you found to be "out of context."  

I didn't realise I was merely expressing my opinion about the music...

And I thank you for finally accepting my use of "context"

Certif1ed wrote: Form is one of the 5 basic elements of music. To ignore it in music is akin to ignoring gravity in architecture.

Form is...form.  Where does it say (music theory) that artists (bands) should conform to certain vocal styles for to use death growls in certain particular genres and styles of music is not conforming to the 5 basic elements of music?

If that's not "confining" music to remain with certain boundaries, I don't know what is?

Music has a way of "confining" itself within boundaries. It's up to composers to find those boundaries and push them in an appropriate and contextual manner.

The 5 basic elements are boundaries in themselves - you cannot write music without them. Those are the unbreakable and confining rules of music. Form is perhaps the strongest dictator of all, and certainly the hardest boundary to push at, since all the other elements must exist within it and are dictated to by form.

Music theory does not say what anyone cannot do, but it does point out what are generally held to be strong and weak methods of doing things. One can agree or disagree up to a point.

I said that I don't think the vocals work in that context - and you seem to be saying that I cannot say that, because the band can do what they like and it will always work. This would infer that you are saying that you could pick up a bunch of instruments, play any old thing for an hour on each and create a masterpiece.