1. And Double sharps second edit has further improved the section. 2. Double sharps and double flats are less common, but they are used.3. A double sharp is placed before a note to make it two semitones higher. 4. Are double sharps allowed in a major scale? 5. For example, in his Fugue, he has many D, E and F double sharps . 6. There are practically no works composed in keys that require double sharps or double flats in the key signature. 7. Double sharps , double flats and quarter-tone accidentals use Scalable Vector Graphics in order to display correctly.8. The template is recommended for the natural sign, produces, and for double sharps and flats, and produce and. 9. I asked this question because when I learn music with double sharps / sharps / double flats I write down the enharmonic notes. 10. The mesmerizing etude Hamelin mentions is studded with double sharps and double flats, sprawling illegibly over as many as four staffs at once.