A xylophone meets a pitcher.
Listen to the pitch of the sound made when the pitcher is hit. Compare it with the pitch of the handle (working as a tuning bar) to know if the pitcher is empty or not.
That way you won’t bother to open the lid while having fun.
Listen to the pitch of the sound made when the pitcher is hit. Compare it with the pitch of the handle (working as a tuning bar) to know if the pitcher is empty or not.
That way you won’t bother to open the lid while having fun.
