Buzz or Multiple Bounce Rolls 密集型滚奏 Open or Double Stroke Rolls 开放式双跳滚奏
1) Play near the edge 在边缘敲击 1) Play in the center 在中心敲击
2) Low stick height 压低鼓棒 2) Higher stick height 抬高鼓棒
3) Pressure in the fulcrum 在支点施压 3) Less pressure in the fulcrum 在支点施压
4) Wrist speed never changes 手腕速度不变 4) Wrist speed never changes 手腕速度不变