When the bottom end (BD) supports the upper limb coordinates we see amazing results occur. Sonny Emory, in my estimation, has been underrated to due recognition yet he holds a strong presence when engaged live. 21st century Drum Marathons, electronic enhancements and drum kit add-ons, in my opinion, pales to the sheer physics and discipline in technique harnessed in raw physical power. Notice Emory's single-beater technique and you'll know what I'm talking about - meaning there is so much more happening with all limbs being in perfect marriage (7:35) that only audible/visual medium best communicate his musicianship, stage showmanship that demands recognition and attention to detail.
Sonny Emory throwback; 1970s
Note; Headphones for better listening.