NPR: Bruce Warren

Bruce Warren is assistant general manager for programming of WXPN in Philadelphia. Besides serving as executive producer of World Café, Warren also contributes to Paste magazine and writes for two blogs: Some Velvet Blog and WXPN's All About The Music Blog.

Since her 2004 debut, Boston's Marissa Nadler has drawn a big response from a small crowd. Her dreamy, fragile folk songs are revered among an assortment of tastemakers, but they haven't yet broken through to a larger audience. Her new self-titled album, recorded at the same Philadelphia studio where Sharon Van Etten made last year's Epic, should help change all that.

This Saturday, June 4, is the fourth annual Roots Picnic at Festival Pier at Penn's Landing. WXPN, along with Okayplayer, will be streaming the main stage performances starting at 1 p.m. ET.