F major F major F major (or the key of F) is a major scale based on F, with the pitches F, G, A, B, C, D, and E. Its key signature has one flat: B. Its relative minor is D minor and its parallel minor is F minor. The F major scale is: \override Score.TimeSignature #'stencil = ##f \relative c' { </score> F major is the home key of the English horn, the basset horn, the horn in F, the trumpet in F and the bass Wagner tuba. Thus, music in F major for these transposing instruments is written in C
A-flat major A-flat major A-flat major (or the key of A-flat) is a major scale based on A, with the pitches A, B, C, D, E, F, and G. Its key signature has four flats. The A-flat major scale is: \override Score.TimeSignature #'stencil = ##f \relative c" { </score> The relative minor is F minor. Its parallel minor, A-flat minor, is usually replaced by G-sharp minor, since A-flat minor, which would contain seven flats, is not normally used. G-sharp major, its enharmonic, with eight sharps, including the F, has a similar problem, and so A-flat major is often used as the parallel