Nine on a Hand (Flam Drag Builder) is similar to Eighteen on a Hand, but it focuses on the distinction between taps and grace notes while drawing your attention to different features of the flam drag rudiment. Ideally, grace notes are played from the tacet height in order to create the best sounding flams possible; i.e., the grace note does not speak as powerfully as the taps or diddles. This approach is the flams equivalent of “doublestrokes consist of two equal attacks.” While the ideal will not always be feasible, understanding it and being able to apply it where it is reasonably achievable will improve your execution across the range of rudimental contexts.