When you buy a harmonium – choose perfection over price because in the long run quality of the instrument will help in many ways. Look for a harmonium with greater power sustenance ability.
Sometimes you may face a situation where when you bought the harmonium it sounds fine but suddenly you hear a buzz. Well, there is actually little to worry about this one in most cases. The buzz sound mostly happens due to change in temperature or moisture level. And can be fixed quite easily.
The main problem when you opt for a cheap harmonium is that it makes a very loud “key click” that can ruin a track especially if you are using the instrument for recording music. So it better to spend a little extra and get a good quality harmonium.