In music, there is no such thing as the "highest key." A key refers to the set of notes that a musical piece is based on, and each key has a range of notes that can be played within it, both high and low. The range of notes in a key is determined by the specific instruments or vocal ranges used to perform the music.
For example, a piece of music written in the key of C major can have both high and low notes within the range of that key. However, the highest and lowest notes that can be played in a specific key depend on the instrument or voice that is performing the music.
In summary, there is no "highest key" in music because each key has a range of notes that can be played within it, both high and low, depending on the instrument or voice used to perform the music.
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