An acoustic piano is a traditional musical instrument that produces sound through the striking of strings by hammers. When a key is pressed, a hammer hits the corresponding string, creating vibrations that resonate within the piano's wooden body. This type of piano can be found in two main forms: the grand piano and the upright piano. Acoustic pianos are known for their rich, warm sound and dynamic range, making them popular in various music genres. They require regular tuning and maintenance to ensure optimal sound quality. Unlike digital pianos, acoustic pianos do not rely on electronics, providing a unique playing experience.