F# Lydian scale
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The F# Lydian scale has the formula 1, 2, 3, #4, 5, 6, 7 with notes F#, G#, A#, C, C#, D#, F
The Lydian scale is the fourth of the seven modes. It is similar to the major scale, but with a sharp 4th note. It is sometimes used in jazz which makes use of the sharp 11th in chords, and is also known for its use in Polish folk music.