During a recent presentation at the Whale Museum Jim Nollman of Interspecies Communication spoke about the 15 years he spent researching Orca communication off the northern tip of Vancouver Island. Nollman, himself a musician, experimented in playing music for the whales through an underwater microphone. When asked, "What kind of music do they like best?" he answered, "Reggae". Nollman based this on his observation that the whales hung around longer and made more vocalizations themselves when Reggae music was being played. The crew also invited Tibetan monks on board. When the monks chanted into the underwater microphone the whales approached but instead of making their usual vocal response to human music they hovered nearby silently.
Read more about Jim Nollman's work at the Green Museum