Anzu is positively glowing.

"I'd love to, ziskayt," he says. "All the moreso if thou would'st do me the honour of playing for me in turn."

In a way, Siebren couldn't have picked a better person to ask. Demonic, haunted and malicious artefacts aren't Anzu's expertise, but they're still within the realm of what a physician-necromancer of one kind or another might be called upon to deal with. But Anzu has no premonitions, no foreboding regarding the violin. He's just happy to have found a kindred spirit. And a violin.