Kindness: Is there a drummer in the house? (@ livehouse in Osaka, Japan)

【Situation explained】

One day, a youg rock band was invited to an event at a livehouse in Osaka. However, one of the members, the drummer, couldn't attend it because he had to take the college entrance exam. Other members apologized it to the spectators and the audience leniently accepted the situation. 

As you can imagine, the vibe wasn't so nice. Then the basist asked the audience if there was a drummer in the house, like a cabin attendant asked a doctor in the house.

And there was!