“I thought that the professional touch that made your set was the fact that your guitar was in a proper state of tune.”
I recently played a short set at a local open mic, where a musician friend was in attendance and I received the preceding note the following day. I sometimes forget how sensitive some people are to tuning – my ear seems to be less discriminating than most. I can hear when something is out of tune, but it doesn’t grate on me the way that it does some people. Having said that, I do recognize the importance of tuning.
It actually took me years to figure out tuning. Then one day, the clouds parted and I saw the light. Not sure what the trigger was, but suddenly I “got it”. For others, tuning is as natural as breathing. But the important thing is that you must always strive to play in tune, especially when playing for (or with) others.
Every time you pick up your instrument, you should check the tuning. These days, it is much easier than when I was a budding young rockstar. You can now buy electronic tuners for as little as $15 (though I would recommend spending a little more). And while I think that you should always try to tune by ear first, you can easily check your work with the tuner.
If you get used to playing in tune all of the time, it becomes way easier to tell if you are out of tune, and you may even get to the point where you will be able to critique other performers’ tuning… Best of all, you are way less likely to annoy your audience, even if it is just your cat.