Nineteen years and nine albums later, Belle and Sebastian still prove to be a true testament of youth. Nearly two decades after the release of their debut album Tiger Milk, ninth studio album Girls in Peacetime Want to Dance finds a sound that carries the torch of their primordial folk roots while embracing the changing tastes of an alt-oriented audience. Distributed by Matador Records, the album marks the band’s first release with the US indie label and the first with Atlanta-based producer Ben H. Allen III. Given this tenuous moment in the Glasgow group’s prolific career, the change in direction reads a…