Double Stroke, Rolling and Traditional Grip

好耐之前睇過一個講double stroke o既video：
Mark Wessels: http://www.vicfirth.com/Z85037FJ38C672JF9372651JD92372/BS854639FJ548FJ47FJH28FI/847FMN540F8TGKJ459SD/0932LWISD834IU38262521A.html
不過我覺得哩個video冇好詳細咁講double stroke﹐只係提到兩下要平均(even)﹐同埋用"2 on a hand"做exercise。

至於點樣起快o既時候用手指o既技巧控制鼓棍﹐我諗哩個video會講得詳細o的：
Dave Weckl: http://www.drummerworld.com/Clinic/Dave_Weckl_double.html
入面除左講到matched grip可以用"a bounce and a snap"（彈起之後捉緊枝棍）之外﹐仲講到traditional grip左手係"opening up and closing"（打開再收返埋）。我留意到起佢打一個double stroke o既時候﹐本來係french grip﹐跟住snap果下就變左係german grip... 所以有一個小小o既總結﹐佢係將一個double stroke入面果兩下分別用唔同o既動作打(duel motion)。

再睇埋Jojo Mayer哩估video﹐最後果part "The Buddy Rich Trick"。
http://www.drummerworld.com/Videos/jojomayerbasss.mov
佢用traditional grip打得快o既時候﹐好簡單咁"push and pull"。我試左好多次都做唔到好快... 我諗哩個動作都係要捉準反彈果下o既感覺﹐而"push and pull"只係俾力打枝棍落去﹐唔會拎起枝棍。