Definition

Noun: - The mechanical assembly in a piano: A "piano action" is the complex internal mechanism of a piano that translates the depression of a key into the hammer striking the string to produce sound.

Usage

• The term "piano action" is used to describe the specific mechanical system found in both grand and upright pianos. It is a technical term central to piano construction, maintenance, and performance.
• Example:
• Example:

Advanced Usage

• "Action regulation": The process of adjusting the many parts of the piano action to ensure optimal performance and feel.
  • After years of use, the piano needed a thorough action regulation to restore its touch.
• Describing the state or type: It can be modified by adjectives referring to condition (e.g., , , ) or design (e.g., , ).
  • The pianist preferred a light piano action for faster passages.

Variants and Related Words

• Action (n): In a broader musical instrument context, "action" can refer to the mechanism and feel of a keyboard (e.g., , ), but "piano action" is the specific term for pianos.
• Key action (n): A sometimes interchangeable term, though "piano action" is more precise as it specifies the entire hammer mechanism, not just the key movement.

Synonyms

• Mechanism: A general word for a system of parts working together. (e.g., )
• Keyboard mechanism: A more general term that could apply to other keyboard instruments.

Related Terms (Technical Components)

• Hammer: The felt-tipped part that strikes the string.
• Key: The lever pressed by the pianist.
• Damper: The part that stops the string's vibration when the key is released.
• Escapement: A crucial part of the action that allows the hammer to fall back immediately after striking, enabling rapid repetition.

Noun

1. action consisting of a system of levers that move a felt hammer to strike the strings when a key is depressed