My daughter has just got a kitten that was brought up to the sound of music ( mostly recorders). We had our session at her house last week (so that it's ex-'mum' could see it) and it spent most of its time charging around and winding in and out the legs of the music stands, but an amazing half hour asleep on my lap while I blew down my descant.
my cat has got used to it now but used to attack my feet while I played, wouldn't leave the room even if the door was open.