柯林斯詞典key signature 1. N a group of sharps or flats appearing at the beginning of each stave line to indicate the key in which a piece, section, etc, is to be performed 音調(diào)符號[music] 返回 key signature劍橋詞典the symbols at the beginning of a printed piece of music that show the sharps or flats to be played （音樂的）調(diào)號 返回 key signature