Chord Roots:
The Root of any chord will be the note which corresponds to the letter name of the chord. For example, the Root of a DM7 chord is D.Chord Inversion:
If the root of a chord is not in the bass (the lowest note in a chord voicing) then that chord is said to be an Inverted Chord. For example, starting form lowest to highest, if you have the notes E, G and C you have an inverted C Major chord. It is inverted because the C, the Root of the chord, is not in the bass.
Any chord with the notes C, E, and G is a C Major chord no matter which note is in the bass, because they all contain the same notes.
Examples of Inverted Chords:
