Pigmeat; I have seen the video of that research to which you refer, and the evidence is quite compelling. IMHO, the NSF needs to dedicate funding NOW to push this technology to new frontiers. We really need to know the response of penguins to other musical forms such as, let's say, Hungarian Throat Warbling or the didgeridoo. It is that crucial to our National Security.
"Ridi Pagliacci, I love you vedy muchee!"