The una corda pedal is a feature found on many pianos, particularly grand pianos. When pressed, it shifts the action of the piano slightly to the right, allowing the hammers to strike only one of the three strings per note, instead of all three. This results in a softer, more muted sound. This pedal is often used by composers and performers to create a delicate tone, especially in romantic music. The term "una corda" means "one string" in Italian, reflecting its ability to produce a quieter, more intimate sound compared to the standard piano tone.