Theoretical key the signature this leads to a key whose key signature has an additional sharp. A piece in C that performs this modulation would lead to the theoretical key of G major, requiring eight sharps, meaning an F in place of the F already present. To write that passage with a new key signature would require recasting the new section using the enharmonically equivalent key signature of A major. An example of such recasting is Claude Debussy's "Suite bergamasque": in the third movement "Clair de lune" the key shifts for a few measures from D major to D minor (eight flats),
Clair de lune (Fauré) 1888, at the instigation of the Princesse de Polignac, he made a version for voice and orchestra, first performed at the Société Nationale de Musique in April of that year, with the tenor Maurice Bàges as soloist. In its orchestral form the song was included in Fauré's incidental music "Masques et bergamasques" in 1919. The original published version (Hamelle, Paris, 1888) is in B-flat minor. The song is dedicated to Fauré's friend the painter Emmanuel Jadin, who was a talented amateur pianist. Clair de lune (Fauré) "Clair de lune", ("Moonlight") Op. 46 No 2, is a song by Gabriel Fauré,