Biologists know that whale songs, which may carry for hundreds of miles, change over time and are passed on from one generation to the next, but they don't fully understand what these complex sounds are for. Philosopher and musician Rothenberg (Why Birds Sing
) proposes that music played by humans can help us find answers. He tested this theory by playing his clarinet into an underwater speaker and recording the whales' responses on an underwater hydrophone. His intriguing book includes sonograms and a CD demonstrating that the orcas, belugas and humpbacks he played for seemed to interact with his music. He also includes much information about whales and accounts of attempts to discover rhythm, shape and form in their songs; colorful descriptions of the whale scientists he has worked with; and a chapter on composers who have incorporated whale songs in their pieces. As Rothenberg points out, it was a recording of whale songs in the 1970s that led to the whale conservation movement. His paean to the beautiful music these great mammals make should lend further support to attempts to save the whales at a time when they are increasingly threatened. Illus. and CD. (May)
