A note on the thing you're really tuning in for. You could feel that you will pay attention to whether your string is higher or lower in pitch than your reference note. That is really the most difficult way possible of getting it done. It takes practice to have the https://ringtones-library.com/ option to hear increasingly small contrasts between the notes. As a starting guitarist, you'll reach a place where you can't differentiate between the two notes like somebody with more experienced ears can. You'll arrive. It simply takes a touch of listening experience.