Inexperience is forgivable, as long as one is willing to correct it.

[ He'd be a hypocrite if he thought otherwise. There's plenty about vampiric life that still trips him up, after all. He's quite happy about having the upper hand in some respects. Even if it is in finding places to practice. A victory is a victory. ]

There are also secret rooms and passages around, if you know where to look. Singing in them would defeat the purpose, though.