In the early years of the 20th century, Camden was a center for the American recording industry, attracting musicians, including the opera legend Enrico Caruso, right, who made their recordings at the old Victor Talking Machine company.
Researchers themselves are making their recordings available as ringtones.
"The fact that their musical lineage and circle of friends included the great composers of the 19th century makes their recordings valuable documents of performance practices and musical sensibilities of the time," he added.
Their enthusiasm, wide-ranging repertoire, and unique sound made their recordings American favourites, including "Goodnight, Irene," "On Top of Old Smokey," and "So Long, It's Been Good to Know You".
Some people make their own recordings, and clips are available on YouTube.
"They responded that they would make their own recordings with a Chinese orchestra," Breiner told the Post.
They refused to allow the detectives to make their own tape recordings of interviews and insisted all questions be submitted to them in advance.
Zappa responded by appearing on the Pasadena, California radio station KROQ, allowing them to broadcast Läther and encouraging listeners to make their own tape recordings.
He was 19 in 1962 when the Beatles made their first recordings for EMI.
Even the Monkees, by then down to only two members, Micky Dolenz and Davy Jones, made their last recordings and expired along with the decade that created them.
