double sharp

American  

noun

Music.

1. a symbol (× or ) that raises by two semitones the pitch of the following note.

2. a note or tone marked or affected by such a symbol.

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double sharp British  

noun

1. music

   1. an accidental that raises the pitch of the following note by two semitones

   2. a note affected by this accidental

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adjective

1. (immediately postpositive) denoting a note of a given letter name raised in pitch by two semitones

Example Sentences

For example, if, in an augmented G sharp major chord, you rewrite the D double sharp as an E natural, the triad becomes an E augmented chord.

From "Understanding Basic Music Theory" by Catherine Schmidt-Jones and Russel Jones

A note can also be double sharp or double flat.

From "Understanding Basic Music Theory" by Catherine Schmidt-Jones and Russel Jones

So the first thing he did when he was over the wall was to make the neatest double, sharp to his right, and run along under the wall for nearly half a mile.

From Journeys Through Bookland, Vol. 2 by Sylvester, Charles Herbert

The double sharp is made either thus or *, the first form being at present the more common.

From Music Notation and Terminology by Gehrkens, Karl Wilson

The double sharp was felt by him to be unsatisfactory, and was sacrificed.

From The Shadow World by Garland, Hamlin