In the final bar (the bar with the drum fill) beats three and four are entirely taken up With all the paradiddle. The ideal hand plays to the hi-hat, While the remaining hand plays about the snare.  You can find a metronome as an app on your cellular phone or https://bnggicngcno29741.ampedpages.com/bảng-giá-đồ-cúng-côn-đảo-an-overview-62901924