Gzzorrkk! Loud colors would be distracting. Not my idea of any place to evaluate either black and
white prints or esp color ones, or be trying to subtly tone them. But then, I don't like music in the darkroom either. I don't know how Fred Picker managed to print with Bach and Beethoven. I personally got a gout attack from listening to Handl while watching Barry Lyndon and all those frumpy
Englishmen eating pheasant and drinking port.