[Sherlock takes note of the somewhat conflicting reaction, even if he can't quite put a finger on what it implies. He's trained himself to take note of even the slightest gesture and twitch, so he keeps doing it on instinct, but heck if he knows for certain what it means half the time.]

Say no more, say no more. Magitech it is! [He whirls himself around and digs through a sizable pile of rubbish beside his desk, until he's finally gotten hold of a large case. From within it, he pulls out his modified violin. There's a few cores embedded into it.]

I must say, it has an interesting sound to it now. Not quite what I expected to hear, yet it isn't disagreeable in the least, so I left it as it is.