First inversion
The first inversion of a chord is the voicing of a triad or seventh chord in which the third of the chord is the bass note and the root is a sixth (or corresponding compound interval) above it. In the first inversion of a C major triad, the bass note is E—the third of the triad—with the fifth and the root above it, forming the intervals of a minor third and a minor sixth (or corresponding compound intervals) above E, respectively.