TRIADS 

Triads are three (3) musical notes that are stacked vertically in thirds. These three notes can be seperate by three lines or spaces. There are open chords that play on both staff adn close chords that play on one staff. 

There are different types of traids. The main ones are Major traid, minor traid, augmented traid and diminished traid.

• To identify a traid we use the line root, third, fifth.
• In a major traid you have a major 3rd and perfect fifth.
• In a monior traid you have a minor 3rd and perfect fifth
• In a augmented traid you have a major third and augmented fifth.
• In a diminished traid you have a minor third and diminsihed fifth. 

All fifths are perfect except for B to F because it is a diminished 5th. 

In a major scale 1 4 5 is major and 2 3 6 are minor.

In a minor scale 1 4 5 is minor and 2 3 6 are major.

The 7th chord is always diminished.

Watching this video it gives you a detail understanding of traids and broken down concept.

In this video it shows you how traids are being played on an istrument.

Here is me playing a few traid.