I recently wrote this in a facebook group to explain to some folks what it means for a band to possess power. I may have posted something like this in my blog before, but at this very moment/ I don't remember. so here goes my philosophy.
Intensity isn't necessarily power, it's only part of the concept. you destroy the
music by focusing only on volume
High Endurance, + High Stamina, = High Energy + Pressure = Intensity.+ Control of Frequency ( as the execution of creating moving sounds via proper articulation and volume ) = Power ..
when you are in total control of the frequency of sound you produce, You "have Power...
With Power, you control the elements that make up the sound. the only thing you don't really have total control over is the conditions of environment, yet that environment cant be used to the advantage of the musician or musicians / band that consistently deals with the conditions itself. e=mc2
All of the that + Emotion makes it all worth while ,, without emotion. you cant really "sense" the power.
Ignoring Written Notation, could lead to deflated articulation, which means all of your energy will now go to playing loudly & Blasting "in your own world" . and more Physically you might start " start "Spraying" or lose balance, or possibly even collapse because you focused all your energy on one thing .. = ZERO CONTROL.
Proper conditioning is a major part of the power concept .. it's why some of our bands When Marching in a Parade sound the exact as they do while standing Still, and or preserve energy while marching, waiting till "high spots" in a parade to release all of the reserved energy for the big moment. ..
.It's also the reason our bands don't really "Feel Tired: until the parade ends.. .
then they wake up to do it all over again.