Former hospice social worker here… Sorry to hear that, buddy.
We had a music therapist who got one.of our patients to meet her idol, Dolly Parton. A lot of moving parts were pulled to make it happen. We're linked with the biggest nonprofit hospital in SW Missouri. They posted a notice, and someone with connections reached out to Dolly and arranged it.
So, if your hospice has a music therapist, start there or check out SW. Write to the big country labels.
Wishing you all the best.