Hadn't seen this one before (so, sorry if already posted) - nice isolated track for Ox on the Spider (music at 1:15):
 
http://www.bassplayer.com/artists/1171/john-entwistles-live-isolated-bass-track-on-the-whos-wont-get-fooled-again/51476

Yeah, that's a great one! Love that pic in the link of the bass with the split V headstock - were his basses called Spyders or just Exploiters?

I love the OX's right hand technique.

Incredible.
 
That never gets old. What a tone!
 
Even without the rest of the instruments, you can tell what song it is.
 
+1 on the right hand - huge influence on me.
 
I also like his use of octaves near the end. Really powerful. And his choice of where to finger certain passages on the fretboard really brings out the subtleties of some of his lines.
 
And yes - this is proof that you can be subtle, even at 120 dB!

Song is in the key of A, obviously using scales and modes to get that busy full sound, great playing, very powerful but he looks so relaxed and at times...pissed off!!!