Thea response brought a grin to the boy's face as Balthazar happily turned his attention from Luke. With eyebrows slightly raised the grin was more amused than anything as his head tilted slightly to the side.
"Sorry, Theadora. Didn't know you were enjoying this. Want me to call him over- I'm sure he'd love a duet."
The grin still there, Balthazar looked back at his quidditch captain, not worried Thea was planning on responding, he'd hear her- unless their personal balladier decided to find a seat on his lap. Judging by his performance it may not make him seem more like a loon than he was now. It also would give B a reason to end this performance quickly.
"How long is that song?" he asked to anyone willing to answer.