I 6/4 chord (second inversion)

Definition

The I 6/4 chord, also known as the second inversion of the tonic triad, is a chord that consists of the root note in the bass, followed by the third and fifth notes above it.

Analogy

Imagine a group of friends standing in line for a movie. The person at the front is like the root note, providing stability and leading the group. The two friends behind are like the third and fifth notes, supporting and harmonizing with the leader.

Related terms

ii6 chord (first inversion ii chord): This term refers to a chord built on the second scale degree that has its first inversion, meaning that its third is in the bass.

V6/4 chord (second inversion V chord): This term refers to a chord built on the fifth scale degree that has its second inversion, meaning that its fifth is in the bass.

Tonic triad: This term refers to a three-note chord built on the first scale degree of a major or minor key.