Dominant Seventh Chord Cheat Sheet (Print on landscape.) Piano PagesWilliam Wieland
    
 B7 E7, A7, D7  G7 C7, F7
(Bee)  (Ee–Add)   (Guh–Suh–Fuh)
 
    
BFlat7 EFlat7, AFlat7 DFlat7  GFlat7