I can fully understand what you mean in this post. Last week I went to an organ concert and met the organist (is that the word or organ player?) after the performance. She told me she almost canceled the concert as the organ was faulty, a few registers were not working.
Imagine how many times you have problems with the pinano you have to play and imagine the organs, which most of the times are a few hundred years old. Organs are far more rare and repairing them is not only super expensive but also needs a specialist, which are also rare. I felt sorry for the lady as it's not easy to play a faulty musical instrument. Most of the audience can't hear what's wrong, but she knows things are not right.
Next week I'm going to attend another organ concert 😍
Oh, I am familiar with the troubles of the organists. Last summer an organ player had a concert in the church of my native town and in the middle he refused to play anymore. One pedal got stuck so it was impossible to get the other things right. Indeed, not too many people are around that can fix an organ...
I am lucky I play just the piano :D
(Sorry for the delayed response, we are traveling 🚗) ☺️