When I listened the sound of water dropping on a iron plate, it remind me the sound of "suikinkutsu".
Even I was in the kitchen, the sound brought me mind trip to Japanese garden.
This is a discription from Wikipedia.
A suikinkutsu (水琴窟? literally "water koto cave") is a type of Japanese garden ornament and music device. It consists of an upside down buried pot with a hole at the top. Water drips through the hole at the top onto a small pool of water inside of the pot, creating a pleasant splashing sound that rings inside of the pot similar to a bell or a Japanese zither called koto. It is usually built next to a traditional Japanese stone basin called chozubachi, part of a tsukubai for washing hands before the Japanese tea ceremony.
You can hear the sound from here.