Okay kiddo, so you know how we have different sounds in music, right? Well, a sixth chord is a special combination of sounds that musicians use to create a certain feeling or mood.
To understand what a sixth chord is, we first need to know what a regular chord is. A chord is when we play two or more notes together to create a harmonious sound. It's kind of like playing multiple keys on a piano at the same time.
Now, a sixth chord is a chord that has an extra note added to it, which is six steps away from the root note of the chord. So, let's say we're playing a C chord (which is made up of the notes C, E, and G), well, a C sixth chord would add an A note, which is six steps away from the C note.
The A note gives the chord a different sound and feeling than the regular C chord. It can make it sound more mysterious or even sad depending on how it's used.
So, that's basically what a sixth chord is - a special combination of sounds that adds an extra note to a regular chord to create a different feeling or mood.