The Allman Brothers Band went on to become one of the most influential rock groups of the 1970s. George Kimball, writing in "Rolling Stone" in 1971, described the group as "the best damn rock and roll band this country has produced in the past five years." After months of nonstop rehearsing and gigging without Gregg, including free shows in Central City Park in Macon and Piedmont Park in Atlanta, all they needed was a singer/organist and Duane knew who he wanted. When Gregg got back from California the group settled on the name of the band and was ready to record. Their debut album, "The Allman Brothers Band", was recorded in New York in September 1969 and released a few months later. In the midst of intense touring, work began in Macon and Miami (at Atlantic South–Criteria Studios), and a little bit in New York, on the band's second album, "Idlewild South." Produced mostly by Tom Dowd, "Idlewild South" was released in August 1970 and broke new ground for them by getting into the "Billboard" charts.