Some whale music is very much like cello music : note

In this document, Carl Sagan notes similarities between whale song and cello music. He suggests it "would be a good idea to position Mstislav Rostropovich on poop-deck of a fast Caribbean boat and have him harmonize with the whales." From Carl Sagan's "ideas riding" files, a play on "ideas writing." These files contain a running set of initial concepts for various writing projects.