Maybe it was Just a Slow Week for Audio News . . .

The year was 1956, and Elvis had just finshed his set on the December 15 Louisiana Hayride radio show. Elvis was one of a half-dozen acts that were broadcast that night on KWKH, the radio station that originated Hayride. After his encore, Elvis left the stage and the crowd went wild—so wild that they would not stop screaming for more of the soon-to-be king of rock'n'roll. Because several acts on the bill had not yet performed, the show's announcer, Horace Logan, went to the microphone in an attempt to quiet the audience, and ended up making a little music history.

"Elvis has left the building," said Logan.

The recording of the historic moment was owned by International broadcasting, parent company of KWKH in Shreveport, Louisiana, until the station moved, in 1974. At that time, David Kent, operator of the Hayride from 1974 to 1987, purchased the entire collection of historic tapes of the Louisiana Hayride. On his death in 1992, ownership of the tapes was transferred to his son, Joey, who kept them until offering them for sale in November 1998. The recording is said to feature Elvis's encore presentation and a somewhat burlesque version of "Hound Dog," and continues after Elvis leaves the stage: the clamoring of the excited audience can be heard until, at last, Logan could endure it no longer and uttered his now-immortal phrase.

Collectors Universe One-Of-A-Kind Auctions plans on selling the original recording on October 30 at the Mandalay Bay Hotel in Las Vegas, Nevada. Also on the bill: a rare suede jacket, worn by Elvis Presley on the cover of the Suspicious Minds picture sleeve.

In other noteworthy music news, Reuters is reporting that a 27-year-old Finnish woman has won the fourth annual air-guitar world championship in the northern Finnish town of Oulu, beating mostly male competitors from around the world. Dressed in an English school uniform in homage to AC/DC guitarist Angus Young, Johanna Ala-Siurua's breathtakingly mimed guitar licks and stage presence to the track "Let There Be Rock" proved an unbeatable combination.

"She has that certain something that separates mere winners from champions," the jury said in awarding her the title Friday night. Most of the 10 contestants agreed that the discipline is at its finest when mimicking intricate guitar solos with hands alone. "Using tennis racquets or other paraphernalia is an affront to God and nature," said Paul Shapiro, a 30-year-old London-based music journalist, who failed to make the top three. New world champion Ala-Siurua agreed, scorning the cardboard guitars used by some heavy-metal enthusiasts. "I had a plectrum with me, which I think is acceptable," she told Reuters.