A batch of jazzy takes on stale kiddie standards, saxophonist Hayes Greenfield’s Music for a Green Planet features inventive arrangements of tunes like “Hush, Little Baby” and “This Little Light of Mine.” But don’t expect to sing along; new lyrics penned by Greenfield and environmental activist Margo Schepart transform songs into Save the Earth anthems like “Hush, Little Planet” and “This Little World of Ours.” The message is, of course, important, but at times it’s hard to shake that corny feeling. While some of the rewrites are clever, others are clunky (the “bring back” chorus to “My Bonnie Lies Over the Ocean” turns into “Turbines, turbines, water can make them go round and round”). For older kids, the CD may serve to introduce a variety of jazz styles, including Cajun and ragtime, and spark conversation about the sorry state of the environment. But preschoolers—not to mention their parents—may find themselves pining for the un-PC originals.