I completely disagree with the concept that 'more knowledge is better.'
There's knowledge, then there's wisdom, and then there's message, then there's life experience, and there's inspiration, and then, there's the future - the place where man didn't quite know yet, that he would be moved quite so as he was moved, by a piece of music or song or sound in any given time frame... And then, there's 'bad' knowledge, the kind of dogmatic bullshit stick-in-the-mud, formulaic crap that keeps everything sounding the same. Screw that. So, just do it. Apply what fits, screw some of it, help your client to shine, move on. Take notes as you go, be disciplined about it. Listeners, are people - those with perfect theoretical knowledge will label a work in congruence with their knowledge. Other people will simply be moved by it. Which do you think is the larger group. Step A - have something to say that's worth listening to in the first place. IMDHO