Since 1995、 former Byrd-man Roger  McGuinn has been posting a song each month on the Folk Den  (www.mcguinn.com) to celebrate and spread the traditional repertoire  that launched his musical life in the '50s. Now he revisits 18 of those  songs on a collaborative、 home-recorded CD、 singing and picking his  banjo and 12-string guitar alongside stalwart folkies like Pete Seeger、 Joan Baez、 Jean Ritchie、 Odetta、 and  next-generation talents Eliza Carthy and  Josh White Jr.  The approach is decidedly old school--warbly voiced、 polite、 and  deferential toward their sources--and the results uneven、 with high  points like the ballad "Wagoner's Lad" (with Baez and Carthy) and low  ones like the listless blues of "In the Evenin'" (with Seeger). These  "treasures" are unlikely to win new fans for the pre-singer-songwriter  age of folk music、 but they will provide pleasant melodies、 and maybe  memories、 for the already converted. <I>--Jeffrey Pepper Rodgers</I>