Basic Chords
What are chords?
A chord is a combination of at least three different notes. This doesn’t mean that any three notes combined create a chord, the notes that form each chord are specific notes to that chord.
The basic chords on guitar
At this point of our learning journey, we won´t deal with the specifics of what notes form the chords, that would just complicate things. In this article, we’ll see the first chords that guitar learners traditionally learn first.
These are the basic forms of major, minor and dominant seventh chords.
If you want to review how to read chord diagrams you can click here.
Different fingers
Some chrods can be played using different fingers. The impotant thing with chrods is that we press the right strings on the right frets. Sometimes using one set of figners can make a chord change easier.
From the chords that we have seen in this article, A, A7, Em and G are the ones that we can find with different fingerings. Here are the usual options. 
Different shapes for chords
Every chord has different shapes, as you learn songs and chord progressions you will find the different shapes. For now, lets see a very coomon alternative for the G major chord. 
Different ways to write the chord symbols
In this article we have cover three types of chords: major chords, minor chords, and dominant seventh chords. To make it easier to write and read, instead of writing the full name of the chord, we use chordsymbols.
A chord symbol will have the chord letter, it will show the quality of the chord (major or minor), and it can also have one or more numbers (as the dominant seventh chords in this article).
In the following table, the examples are with C chords, but the principles apply to every letter name.
