The reason he isnt back is because of “the music”. You cant expect any sentient living being to prefer captivity to freedom. If they see a way, they will go. When someone leaves a door open and my pit-boxer gets out, I get in the car and drive away with the door open.
That dog will come from hundreds of yards away and hop in. I drop the clutch, the door closes, I rub his belly and drive him home.
Whatever.
She’s home now, and properly scolded.