How can I make sure, that I have "an ear" for piano tuning?

Question

Maybe, I should say "the ear"

Answer 1

Well I tune pianos and you ask how can you tell if you have the ear for it? I don’t know if there’s some kind of test to check your tuning ability, but I do know that it will improve with practice. How do you do at tuning say a guitar? To tune a piano by ear you must be able to hear the beats produced by two strings as they come close to unison.
I don’t know if you understand what I mean about beats. But you must be able be able to hear them if you are going to tune a piano by hear. If you were here I could point them out to you. But since your not let me suggest, with a guitar tune two strings to unison. When the strings are tuned true there should be no beats when both strings are sounded at once. Some guitars may give a beat even though the strings are true Because of bad strings or guitar neck.
So get the strings in tune then slowly move one of the string out of tune thats when you should hear the beats. The closer in tune the slower the beats until when in tune the beats stop.
The reason you must be able to hear the beats, they're like a wave of beats. Is because a piano must be tuned a little out of tune. If not one key Like the Key of “G”, might sound good and the others not so good. Today they use what is called even temperament. Or equal distance between each note. So as you tune the strings first you put it in unison, no beats, then you raise or lower the string a number of beats per seconds. Or a little out of tune you’ll need a chart because each string is different. So before I write a book here let me end by saying this. If you can hear the beats, it’s like a wave of beats as a string comes close to unison or close to being in tune then you have an ear for tuning a piano. Practice trying to hear them. They’re there you just have to learn to pick them out. Try to imitate the beat wave with your voice. One good way to hear them is with and electric guitar turned up loud. So to sum up you got to hear the beat and be able to count the beats per second.

Answer 2

I have always believed that an ear was essential ,but there are now available electronic devices that take the guess work out of it.

Answer 3

Listen to the guy who sales good electronic tuners....