Dominant 7 Voicings: Root Inversion C-G-Bb-E or 1-5-b7-3 1st Inversion E-Bb-C-G or 3-b7-1-5 2nd Inversion G-C-E-Bb or 5-1-3-7b 3rd Inversion Bb-E-G-C or 7b-3-5-1