It's from "Green Room" movie. An interviewer asks members of an underground punk band about social media peresence and their music, so the bassist answers: "When you take it all virtual, you lose the texture. Just... you gotta be there. The music is for effect. It's time and aggression... Technical wizardry. And it's shared live and then it's over. The energy can't last."
Now, "share" is to have a portion of smoething with the others as it says in Oxford Dictionaries. But what the definition of "live" in that context? Is it the same as "life"? The pronouncing is same for both, but I'm still not sure.