Not long after the last guitar is strummed, the final beer is downed and East 6th Street clears out, the discussion of which acts made a mark at South By Southwest begins.
For better or worse, that amorphous thing called "buzz" has become a central part of modern music listening. Bands are built up by hype on the Internet and taste-making blogs drive audiences by declaring the next cool thing.
Nowhere is the omnipresence of expected buzz more manifest than at SXSW, the annual music conference and festival that concluded its 23rd annual event early Sunday after four nights of revelry.
With some 1,900 acts packed into just about every venue in downtown Austin (including a church and an old Safeway supermarket), a pack mentality in the audience can set in as attendees -- mostly industry reps and press -- flock together looking for new sound from established acts and first-timers.
Among the established acts was Metallica, promoting a new videogame, who played a semisecret, intimate show for 2,100 -- if a thunderous heavy-metal band can play an "intimate" show.
Kanye West performed twice, once at a showcase for his G.O.O.D. Music record label, the other in a surprise appearance at the party hosted by celebrity blogger Perez Hilton. Big Boi, half of the rap duo OutKast, was eager to talk about his upcoming solo album but less so to perform songs off it, instead playing older material.
Other veteran acts who performed included Echo & the Bunnymen, Devo, P.J. Harvey, Primal Scream and the reunited Jane's Addiction. And some of the most popular shows were those by indie heavyweights like the Hold Steady, M. Ward, Andrew Bird, Grizzly Bear and the Decemberists, who performed their new operatic concept album "The Hazards of Love" in full, webcasting it for NPR.org.
But much of the energy of SXSW was in discovery.
Among the bands that drew fresh excitement were: indie pop outfit The Pains of Being Pure At Heart, the show-stopping Norwegian rocker Ida Maria, South Africa's BLK JKS (pronounced "Black Jacks"), New York's experimental Dirty Projectors, the Ohio garage rockers Heartless Bastards and the Canadian acoustic folk trio Rural Alberta Advantage.
But the constant, never sated search for a sonic cause celebre can sometimes feel more concerned with newness than musical enjoyment. Since most music can be instantly heard online, the hype process has sped up.
"I don't take a lot of stock in this buzz thing idea," said Bob Boilen, of NPR's "All Songs Considered" and host of the Decemberists' broadcast.
"I understand that everyone wants to see Ida Maria, and I do too," said Boilen. "But I like doing the blindfold thing: listening to a bunch of music, not knowing who they are."
The buzz cycle has become familiar to music fans after watching it play out for indie bands like Vampire Weekend, Cold War Kids and Arctic Monkeys.
At times, the attention comes like a tidal wave. Last year, Vampire Weekend frontman Ezra Koenig said in an interview that they finally were graduated from being a "normal band" and that they had "paid their dues" in buzz.
At SXSW, Grizzly Bear singer Edward Droste felt sympathy for young bands celebrated too enthusiastically too soon. The climb for Grizzly Bear, the band says, has been gradual and manageable.
"It can be really detrimental to explode too quickly," said Droste. "For me, personally, the music that I like the most is the stuff that takes a little time to grow with and has a bit of longevity. There are albums that I've jumped on and been like `Yeah!' and then three months later, I've been like, `Nah.' It's sort of the nature of the beast."
But there can be upside to buzz, which is essentially a multiplied version of someone recommending a band to check out. And in the current climate of the music business, any mode of attracting listeners is to be embraced.
The Swedish synth pop trio Peter Bjorn and John had released several albums before the hit "Young Folks" off their 2006 album, "Writer's Block," catapulted them to indie renown.
"We had kind of given up on that," said the band's lead singer Peter Moren before performing. "We thought that the band was going to be a hobby. When you hit 30, you don't think that suddenly it's going to happen, that the dream is going to happen."
