Uncle Al wrote:crfriend wrote:'Tis a pity that this shindig is 2/3rds of a continent away. If it wasn't, I might be tempted to show up and heckle.
Be my guest

My goal is to make the audience forget that I'm even there.
The film is the 'STAR' of the show, not the music

Try telling that to millions upon millions of modern movie fans who have grown up with the sort of magic that John Williams has brought to the "silver screen". Even Steven Spielberg himself has commented that without Williams' music his original groundbreaker
Jaws would have been half the film it was. [0]
Never underestimate the power of a good score. (Or at least do so at your own peril.)
Have the venue owners never heard of something called a vacuum cleaner? They make pretty quick work of dust which should be the primary contaminant in pipe-chambers. I wouldn't wear one of my floor-sweepers to work in such a space, but certainly something knee-length could be well enough managed to not be a problem.
And,
yes, sometimes technical glitches do crop up. I remember at the gala presentation of the Mighty Wurlitzer at Hanover Theatre in Worcester a number of years ago a pipe in the upper stage-left chamber started ciphering, and some poor SOB had to be dispatched to shut it up. The organist for the evening picked up on it instantly, stopped playing, and took the opportunity to present an impromptu lesson on how these wonderful machines sometimes (mis)behave. This is what makes the "real thing" much more interesting than "digital clone wannabes". (The fix was to pluck the pipe from the wind-chest, poke the actuator with a finger, and replace the pipe. It's all electro-mechanical you see, save for trackers which are fully mechanical.)
[0] The "shark theme" from
Jaws is quite likely the most recognisable ostinato in modern music -- it's so common that we now seem to have forgotten where it originated. And it still, after all these years, resonates with its original power and menace.