I should be obvious to anyone who is watching his hands and fundamentally familiar with the bass. Around 55 seconds or so he runs up the neck but the audio is still in a lower register.You know that Jaco video is a joke. That sound is not him actually playing. It's been overdubbed to look like that's how he sounded.
I don't' really know what the purpose would be to defame a player in this way, but the internet is full of bad actors.

