Sir's Guitar Classes on Instagram: "Major and Minor Chords Explained! Major chords come from the Ionian (Major), Lydian, and Mixolydian modes — all having that bright and happy sound. Now let’s talk about Minor chords — they’re built from Aeolian (Natural Minor), Dorian, and Phrygian modes. These bring out the emotional, soulful, or darker side of music 👉 Each chord (Major or Minor) is made up of three notes, called a Triad — the Root, 3rd, and 5th. Major triad = Root + Major 3rd + Perfect 5th