From what I gathered, the following should be done to keep the piano in good condition:
- No direct exposure to sun light, moon light, heat source nor air conditioner.
- An average temperature of 20°C, although above and below are fine too, as long as it's not rapidly going up and down on a short time span.
- An average humidity level between 40% and 70%. Too wet and it will require more tuning. Too dry and the soundboard will crack. Again, fast fluctuation on a short time span is dangerous.
- No exposure to draught nor air flow (which could provoke temperature fluctuation).
- Tuning the piano at least once a year can be good enough, depending on the conditions and environment in which it is.
However, for the past few weeks, I have been arguing with my family about it, because they won't listen when I want to take care of my piano. As in, they know people who don't take that much precaution and the piano is still perfectly fine, because of which I am scared of buying my future piano if they're going to be careless about it (they're using it as an argument to justify the mistreatments).
If you consider the following parameters in my home:
- Several doors and windows are usually open to create a huge draught all around and rapidly lower the temperature during a rain.
- Because it's raining outside, the hygrometer is showing a difference of humidity of 40% inside and outside. If the windows are open, it will quickly climb up inside.
- Family members bumping into furniture when walking and using my current digital piano as a table for their stuff.
What would be the direct consequences if an acoustic piano was exposed to these conditions, especially on its life span?