C-flat major

C♭ major is a major scale based on C♭, consisting of the pitches C♭, D♭, E♭, F♭, G♭, A♭, and B♭. Its key signature has seven flats. C♭ major is the only major or minor key, other than theoretical keys, which has "flat" or "sharp" in its name, but whose tonic note is the enharmonic equivalent of a natural note (a white key on a keyboard instrument). Its relative minor is A♭ minor (or enharmonically G♯ minor), and its parallel minor is C♭ minor, usually replaced by B minor, since C♭ minor's three double-flats make it generally impractical to use.

C-flat major

C♭ major is a major scale based on C♭, consisting of the pitches C♭, D♭, E♭, F♭, G♭, A♭, and B♭. Its key signature has seven flats. C♭ major is the only major or minor key, other than theoretical keys, which has "flat" or "sharp" in its name, but whose tonic note is the enharmonic equivalent of a natural note (a white key on a keyboard instrument). Its relative minor is A♭ minor (or enharmonically G♯ minor), and its parallel minor is C♭ minor, usually replaced by B minor, since C♭ minor's three double-flats make it generally impractical to use.