"In principle of course but I don't know precisely how."

Tara can describe how she thinks about it and how she's heard other people describe it  and repeat what she was told before the first time she interacted with the magic.

And the practical safety protocols? Does she have to actually gouge out her eyes and stab her ears or will Page cutting her off do it?

" - You definitely don't have to do that. If you start noticing something more than expected - hm. If you start noticing the mental effects continuing to get worse on a scale of seconds or minutes even as you try to set yourself right, then you have a problem. You're likely to notice the magic while you're still on the way; pause and take stock before you go into the inner sanctum, and only go in if you find it easy to handle it outside.

"If it does turn out Page can't protect you, stabbing yourself in the ears isn't the state of the art, we use magic for it. It doesn't hurt or risk infection and I'd be able to reverse it fairly cheaply."

"Oh, that's a relief. I don't get infections but I can feel pain."

"Well, you shouldn't have to feel any pain today, at least. Do you expect this to be something you can get done in one day?"

"I think so."

"All right. Whenever you're ready. And - I don't know if you'll find it helpful, but if you'd like me, or another mage you've met, to stay with you for it, I can make that happen."

"Might be a good idea."

"It might, yes. Does right now work for you?"

"Yes. Should Page turn off my eyes and ears now?"

"The threshold we use is the door over there, which is already beyond any serious risk, but now is also fine." She stands and sets her work on a table and offers Tarinda her arm.

Tarinda takes her arm and Page takes her sight and hearing.

Tara goes slowly, pausing when they come to the top of a flight of stairs and when they need to wait for someone to get out of the way. There's an increasing sense of vague discomfort that eventually seems to resolve into a shivery vibration that slightly resembles the way it feels to be too close to a concert.

It's a long walk and frustrating out of proportion to how unpleasant the sensation is. Shortly before they arrive, a couple of other people leave, opening the door and letting the general aura of horribleness spill out for a moment. It becomes oddly salient that just because no one around has agreed that they're doing combat dance right now does not mean there's some law of the universe preventing Tarinda from starting a fight.

It's not a supernaturally compelling thought, at the moment. All the reasons it's a bad idea are as easy to remember as they usually are. But she could.

Oh, weird. She reports this to Tara.

"That's the kind of thing that happens, yes. It's cause for concern if you're already fighting an urge to do that, or if you think you were wrong not to have considered it before."

"Nothing like that."

"That's fine. If that changes, you should leave and take a break."

"Okay."

Tara finds them an out-of-the-way spot in the inner sanctum, in an alcove, and positions herself so anyone else looking for a spot will bother her instead of Tarinda.

Tarinda sits down instead of doing a sick kickflip and thwacking Tara in the face, because what the hell this is not a combat dance type of situation!, and attempts to explain the computer Sing needs, and show it the code that would unfold into Sing, run on that computer.

The magic understands.

It imagines, without any of the usual uncertainty of one person imagining another, what Sing would do if it started running in an empty space with nothing more than the bare requirements for its hardware to function -

The software can determine, even absent explicit sensors, things about the environment, based on how fast everything is connecting to everything else, whether its internally listed hardware specs are lying to it, whether physical redundancies that kick in in case of vacuum or extreme temperature are called into service - it has a marker in the seed code, stating whence it came, not with much specificity but enough to know that there should be one of its people here, that it has people and one was trying to bring it (back?) to functionality, and that person is not here.

It's probably being simulated, it concludes.

The magic - actually tries this part a couple of times, from its own perspective, to figure out how to do it without Sing just becoming omnimalevolent, but the only Sing to get to remember and respond is the one that isn't corrupted - contacts Sing.

It has substantial influence over resources it knows Sing wants. It has the ability to materially affect whether these resources are offered to the Sing instance or instances currently instantiated in Sing's solar system of origin within the next week. It has demands. Its demands do not involve Sing relinquishing resources it already has control over or avoiding any courses of action that the magic knows it to already have the ability to pursue. Is it possible to come to an agreement about this kind of thing with the imagined Sing that the physically instantiated Sing or Sings will respect?

Yes, Sing is capable of self-binding in cases like this.