I see that I can be unfair (not for the first time); I guess it happens like this: after some business during the day, meeting with people, some driving and shopping, me/someone comes home late in the evening, without making a proper dinner me/someone reads a forum or watches YouTube, expecting to be entertained, and somehow it doesn't compensate for not sleeping enough last night, and inevitably every piece of information (and music is one as well) easily irritates. So after keeping non-critical attitude during the day, the accumulated criticism finds its way and form and release itself "randomly" in the evening.

It can work other way as well, combining a process of evaluation with something pleasant, like tasty food, snacks and coffee, the same object is likely to be evaluated quite favorably.

I guess it's safer not to invest all (emotional) energy into one object; if we're talking about instruments, instead of looking for a perfect arranger, it's more gratifying to combine different directions, such as arrangers, workstations, digital pianos, ets. Changing activities surely can work as well.