Yeah..this kind of pretentious crap
I don't regard it as pretentious to use a lot of technical language, though I appreciate that it can go over some people's heads. I'm in a male voice quartet where, as it happens, two of us have an extensive knowledge of music theory. We have a habit of breaking off into technical discussions sometimes. At yesterday's rehearsal I turned to the leader and said "I'm having trouble singing this interval, I think it's an augmented second". With a look of complete mystification, one of the other members said something along the lines of "Stop analysing it and get on with singing it", but he was missing the point. I needed to know what the interval was in order to pitch it correctly.