I know the E, A, D, & G note strings but in the new module Josh taught us about the 3rd fret being the G note, the 5th being the A note & the 7th fret being the B note. Its this just a musical intersection or is there something I’m misunderstanding?
each fret represents a half step along the music alphabet. so, plucking the thickest string closest to your head without touching a fret is an E, then you count up the alphabet in half steps:
open = E
1st fret = F
2nd fret = F sharp
3rd fret = G
4th fret = G sharp
5th fret = A
6th fret = A sharp
7th fret = B
etc…
7th fret is defintely not a G so i suspect you may have misread/misheard that. also note that there is no such thing as an E sharp, so the 1st fret goes from the open E right to an F (not an E sharp).
That 5th fret is also special in that every note is the next string up which allows for a quick tuning trick. Are you practicing on your own and can’t find your tuner? Just push the E string down on the 5th fret and pluck both the E and the A string. Make the A string sound like the E on 5th. Then move up a string and repeat.
On a 6 string guitar (not bass), you would move up the 4th fret starting with the G string but for bass, it’s not a concern unless you’re using a weird tuning or something. I wouldn’t recommend this if you’re trying to play with backing music or what have you.
Once you learn harmonics, you can use quick tune that’s a bit easier to hear using the 5th and 7th fret harmonics.
Also, pop a harmonic on the 12 fret of the E and D strings and you can quickly do a drop D tuning.
Keep in mind, a tuner is always the preferred way but I’d rather have the knowledge and not need it than to need it an not have it.