Pete Seeger's recording career covers more than 60 years, so a single-CD collection is bound to leave out more than a few worthy songs. But the 16 selections on Pete Seeger's Greatest Hits include indispensable Seeger-composed classics like "Turn! Turn! Turn!," "Bells of Rhymney," and an abbreviated a cappella version of "Where Have All the Flowers Gone?" Also included are songs Seeger popularized, such as "Wimoweh," which he learned from Solomon...