Major and Minor
This video explains how major and minor chords work on guitar and how to change chords to get different sounds. The key is the 3rd note from the scale the chord is in. In a minor chord the 3rd notes is flat – back 1 fret on guitar – compared to the major. So this means our chord, which is made of the 1st, 3rd, and 5th notes from a scale, can be either major (1st, 3rd, 5th) or minor (1st, flat 3rd, 5th). By finding the 3rd note in any major chord you can then turn it into a minor by dropping it a fret back. The same goes for a minor chord – find the flat 3rd then move it up a fret to get a major. This gives you a far deeper understanding of what is going on in your chords and what happens when you modify them. If you missed the chords lesson this might help to clarify the whole 1st, 2nd, etc thing – https://7minutemusic.com/theory/level-2/chords/. If you want to go a bit further have a look at 7th chords here https://7minutemusic.com/theory/level-3/7th-chords/.
Backing Track – A minor to C Major
Chords are made from the first, third and fifth note of a scale
The difference between a Major and minor chord is the 3rd note of the scale
The A minor scale has the same notes as C Major
Level 2 Progress
Change your Em chord to an E Major – you will need to add a finger
Play with the 1st and 3rd notes of the A chord switching between them while strumming
Find the 3rd note of G Major, then flatten it for G minor
Play Am, Dm, Am, Em. Change it to A, D, A, E (all Major)