What is a double sharp G?
[English] The musical note "G" preceded a double sharp (𝄪) symbol. The effect of the double sharp symbol raises the pitch of the indicated note by two semitones (two half steps). The resultant pitch would sound the same as the pitch "A".
Is a double sharp an accidental?
A double-sharp is an accidental for a note that has two sharps, meaning the original note is raised by two half-steps (also called semitones). ... You can read more about enharmonic notes to understand when one note has two different names, and why they are used in music notation.
What is the point of double sharps?
The purpose of double sharps and flats in key signatures is to represent this scale in the way it is written, and avoid constant use of accidentals on a note - as per the example switching between G and G#.