Watch the Just Add b9 online guitar lesson by Sheryl Bailey from 50 Essential Bebop Licks You MUST Know

By adding a b9 to the triad shape, we can again generate a whole new series of ideas and shapes. So the notes on the G chord are: G, Ab, B, D, and the notes on the Db are: Db, D, F, Ab. Have fun with mixing these notes up.