In my last lesson, I showed you the fretboard. I told you to look for simalarities between different strings and their notes.
You should have noticed that the 12th fret on the low E string is the same note, with the same tone, as the 7th fret on the A string. If you didn't notice already:11th on the Low E = 6th on the A; 10th on the low E = 5th on the A, etc. This works on all strings right? Wrong. Hopefully you noticed that on the G string, the 12th fret is NOT the same as the 7th fret of the B string. It is in fact equal to the 8th fret of the B string. I do not know why the B string is tuned a half step off of the rest, but it is, and sounds good like that, so we will not worry about that for now.(Eventually I will get back to that, after I understand the concept fully.) You should have also noticed that the 5th fret on any string, except the G string, is the same as the next string down, open. (Open refers to a string that is not fretted at all.) That is handy for tuning your guitar to itself. Basically you tune the top string close to where it should be, then fret it at the 5th fret. Play the next string down (Open.) Now, match the tones. Continue this down the strings, but do not forget that to tune the B string using the G string you put your finger on the 4th fret.(Hopefully that made sense. If it didn't, you can note me.)
