One harmonic technique that you really need in your arranging arsenal is how to use pedal point.
Pedal point comes in really handy in intros (especially ballads), bridges, interludes, etc. – just about anywhere that you need some variety in your chart.
This lesson covers some basic information about what pedal point is, how it is used, then I play for you two separate arrangements whereby I used pedal point within the chart.
Hope you enjoy it, and please let me know if you have any questions.