Ernie raised an eyebrow, looking at the French Horn. "Well, you have to do a whole buzzing thing with your lips, don't you? That seems like it could be hard. Plus the whole breathing thing..."
He supposed that it would take practice. He wondered how heavy the instrument was.
"So, is really most of it from the way you use your lips, since there are only, what, four valves? It doesn't seem like it could be enough to get a full range of sound."
He wondered slightly if his questions were getting irritating. He didn't want to bother her if she had other things to do.