So far, all of the chords have been built with the root as the lowest note. But you can create subtle variations in sound by reordering the notes so that a different note is at the bottom. This process is called inversion.
A triad with the root as the lowest note is said to be in root position. Here is a C major triad in root position:
A first inversion triad has the third of the chord as the lowest note. The root is then transposed up an octave.
Build a first inversion C major triad:
Inversions are sometimes written using slashes. For example, you can call the C major triad in first inversion C/E ("C over E").
A second inversion triad has the fifth of the chord as the lowest note.
Build a second inversion C major triad:
You can call the C major triad in second inversion C/G ("C over G").
Compare the sound of the root position, first inversion, and second inversion triads. Each inversion has a slightly different "flavor."