Hey & welcome to GT!
Originally Posted by: W.A.S.P.She has shown B major and B minor chords, bu they are completly different to the Essential chord sheet examples.
All major and minor chords are formed by playing some combination of the 1st, 3rd & 5th scale degrees of their parent scale. That means there are many different ways of playing (or voicing) any given chord.
Which voicing is used or taught depends on the instructor, the musical context or purpose. For example, any given B major chord is formed by playing these notes any place you can find them on a musical instrument.
B (1st or root of B major scale)
D-sharp (major 3rd of B major scale)
F-sharp (5th of B major scale)
Some curriculums start with this particular voicing:
|--2--(F#)------------|[br]|--4--(D#)------------|[br]|--4--(B)--------------|[br]|--4--(F#)------------|[br]|-----------------------|
|-----------------------|
Because:
1. There's no easy open string option for those 3 notes.
2. It's fairly easy for beginners.
3. The shape matches the upper part of an open A major chord. It's easy to see how the B major shape is related, but 2 frets higher.
But some curriculums start with this voicing.
|-----------------------|
|--4--(D#)------------|[br]|--4--(B)--------------|[br]|--4--(F#)------------|[br]|--2--(B)--------------|[br]|-----------------------|
Again, because it matches the A major, but also because eventually you'll learn barre chords. But also because the root note B is the lowest. The root note doesn't have to be the lowest note in a chord voicing!
You can play either one & it is a B major chord. Eventually you will learn to combine them into a barre chord shape!
|--2--(F#)------------|[br]|--4--(D#)------------|[br]|--4--(B)--------------|[br]|--4--(F#)------------|[br]|--2--(B)--------------|[br]|-----------------------|
You could just play the middle 3 notes!
|-----------------------|[br]|--4--(D#)------------|[br]|--4--(B)--------------|[br]|--4--(F#)------------|[br]|-----------------------|[br]|-----------------------|
But as you can hopefully see these are simply different ways of combining the same 3 notes over & again. They all have the characteristic sound of B major, but with variations. Some voicings double certain notes, some do not, the result is that some voicings have more or less bass or treble, a lower or higher timbre, more or less bright, more or less full. But they are all B major chords.
I think the difference between the chart & Lisa's lesson may be that I taught the previous version of the Fundamentals courses. And I start with the root note in lowest position.
https://www.guitartricks.com/lesson.php?input=11139
But when GT had Lisa do the latest version of the Fundamentals courses she chose to start with the B major chord using a different voicing. So, maybe the chord sheet needs to be updated to reflect that.
From a practical perspective, as a beginner you can pick either one & it's fine. They are both B major. Eventually if you keep learning and playing guitar you will need to know both anyway for different musical contexts.
Hope that helps! Have fun practicing!