I’ve always thought, as I suspect many of you have, that animals in general (and our pets in particular) will respond to human music, even like it.  It turns out that this idea may be wrong.  A recent study has revealed that monkeys don’t like human music, but will listen and respond to music based on the vocalizations they make.  This article from Wired explains the details.  I listened to both samples of music and found the fearful monkey music very irritating.  The happy monkey music wasn’t much better!