"Oh," Bastien says, apparently caught off guard, apparently at a loss for how to reconfigure his two-handed hold on the bow so he can do anything else. The sort of momentary fluster that would make even an Orlesian noble who was quite accustomed to the idea of unfamiliar musicians being dangerous spies think ah, well, clearly not this one.

He figures out which hand the bow is meant to go in and picks the cello up by its neck to bring them closer to Astrarion, joining him at a respectfully friendly distance, and positions the instrument more to make an introduction than to perform.

"Like I said, it is nothing world-shattering, if you know violins. Do you play?"