Viktor limps into the lab, opening his mouth to announce that he's back. But he doesn't get any words out, because he hears an unfamiliar, but not unpleasant sound drifting softly from your workspace.

No way in Runeterra...

He doesn't want to disrupt, so he just stands there, his honey coloured eyes staring at you from the shadows of the entryway. He leans heavily on his crutch and smiles, simply enjoying the melody.