So we had to put down our Jack a couple months back. He was 16 years old and we finally did it only once he was basically out of it totally and not interested in even eating anymore.
He stopped showing interest in the music around the same time as he lost interest in chasing balls, squirrels, foxes, etc. So it seemed basically an age thing. He was tuned into the music still as recently as say two years ago. Of course all dogs are different but I’d say he definitely lost interest gradually in most things over time including eventually even food. Standard stuff with age I would say for dogs and similarly even humans I would say.
Also I should mention his hearing was not good for the last year or so, only reacting to very loud startling noises (he stopped being afraid of thunder which used to drive him as far as into seizures on occasion) so likely the decline in interest in music corresponded to hearing loss. His eyes were sharp up until the end though.
When he heard the music on the Ohms though, he laid there calmly intently focused on the music as evidenced by his ear twitches and head movements corresponding to what was played where in the soundstage. Jack Russell Terriers are highly wired dogs so that is no easy feat. HE was clearly focusing in on different elements of the recording that got his attention at different times as it played. He loved classical music and Bach in particular.
https://photos.app.goo.gl/3SVwibiSkBMbTven6Note his "sweet spot" for listening. A sweet spot with imaging and soundstage only possible with very wide dispersion speakers like Ohms so that helps explain his interest.
It used to be fun playing "Seamus" from Pink Floyd Meddle album. He thought it was a live dog and responded appropriately coming to alert and barking back.
Dogs. Gotta love ’em...