David Attenboro explored this question in a film, which I recorded. I'll
transfer it to mpeg4 & post it somewhere. Very interesting it was.
He concluded that while animals certainly use 'music' it is not a
conscious use, and that they don't sense music as humans do. In part because
they don't have the cranial capacity for bicameral brains, and thus no
aesthetic sensation (positive or negative).
Elephants, for instance, can be trained to beat a drum with metronomic
accuracy, but they cannot vary any rhythm & do not appear to have any sense
of what they're doing beyond responding to their trainer's demands.
. Attenboro cited two exceptions. One is the lyre bird, which seems to
have the capacity to vary it mating according to circumstance. The other is
whalesong. It is now beyond question that humpbacks have personal
repertoires & call /recognise each other over tremendous distances
underwater [when not deafened by US Navy sonar & shipping]. A full humpback
song can last hours. They have 'life songs' which appear to identify them to
each other, as we do names, and they do seem to repeat them throuout their
lives with slow evolutions. There is a US professor who has spent much of
her life afloat cataloging Pacific humpbacks.
Mx