"Selectively how?"

"By thinking about it, probably, with some work."

"I often can't think straight once there's already music happening."

"I could have it on all the time, and you could turn it off if you desired to have a conversation aloud for some reason?"

"If it would fade back in if I stopped suppressing it that sounds ideal."

"I can do that. It may take some time. Do you care to sit down?"

"Yes please. Thank you." Sit.

And she works for most of the afternoon - this doesn't look like anything, though occasionally the air pressure fluctuates - and then says "all set, I should expect."

"- it might be a good idea to test it -"

He sings something.

"Works," she says.

Aulë laughs delightedly. It's a little inhuman.

"Thank you very much," she says again.

"My pleasure. May it make your stay in Valinor more comfortable."

"It will."

"I hope you will find happiness here."

"I hope so too."

And they return home.

"Thanks for bringing me."

"My pleasure. I'm sorry she couldn't make you immortal."

"I am very nervous about Eru having a plan for me, I was hoping she hadn't noticed I existed or something."

"An understandable desire."

"And apparently it doesn't involve the Valar making me immortal."

"Possible it involves someone else making you immortal."

"I hope so."