Major chord

A major chord is a special combination of three notes played together in music. It is built from a triad, which means three notes stacked on top of each other. The notes in a major chord include a major third and a perfect fifth above the starting note, called the root.

For example, the major chord built on the note C includes the notes C, E, and G. These chords sound happy and bright, which is why they are used often in many songs and pieces of music. Understanding major chords is important for learning music theory and playing instruments like the piano or guitar.

Major chords are a basic building block in Western music and are used in many different genres, from classical to pop. They help create the mood and harmony in music, making them essential for musicians to know.

Structure

A major chord sounds brighter than a minor chord. It is made up of three notes: the first note, the note a major third higher, and the note a perfect fifth higher. This creates a happy and clear sound that is often used in music. When the first note isn’t the lowest sound, the chord is called inverted.

Just intonation

In just intonation, a major chord is tuned using a special mix of sounds called the ratio 4:5:6. This tuning lets you play major chords in several places on the scale, like at I, ♭III, IV, V, ♭VI, and VI. In another tuning called equal temperament, the fifth sound is a tiny bit smaller than in just intonation. The major third sound is also a little bit smaller than in just intonation.