Key Signature
Definition
A key signature is a set of sharps or flats placed at the beginning of a musical staff to indicate the key of a piece. It tells musicians which notes are altered throughout the piece.
Analogy
Think of a key signature as a musical "password" that unlocks the correct notes for a song. Just like how you need the right password to access certain information, musicians need the correct key signature to play the right notes in a piece.
Related terms
Tonic: The tonic is the first note of a scale and serves as the home base for a piece in a particular key.
Major Key: A major key is characterized by its bright and happy sound, often associated with feelings of joy or triumph.
Minor Key: A minor key has a more melancholic and somber sound, often associated with feelings of sadness or introspection.
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