By way of contrast to the recent thinking at the Manchester Town Hall, it's very heartening to see that the authorities at the Colston Hall are taking a far more enlightened approach. I don't think this has been mentioned on this board yet (apologies if I've missed it) but the rather wonderful Harrison and Harrison concert organ there has been removed and is being refurbished by its makers in time for the hall's re-opening in 2020.
Although I've not seen this on Harrison's own website yet, it's mentioned on the Colston Hall website - https://www.colstonhall.org/about-us/organ/ - where there's a rather fun video giving the organ some well-deserved publicity.
According to the local media, the cost of this work is £1million, so a major chunk of cash by anyone's reckoning. It's great that the hall authorities are prepared to invest so much to keep an important part of Bristol's musical heritage alive.