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. Its relative minor is D minor and its parallel minor is F minor. The F major scale is: 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 major. Most of these sound a perfect fifth lower than written, with the exception of the trumpet in F which sounds a fourth higher. (The basset horn also often sounds an octave and a fifth lower.) The scale-degree chords of F major are: Tonic – F major Supertonic – G minor Mediant – A minor Subdominant – B-flat major Dominant – C major Submediant – D minor Leading-tone – E diminished Notable compositions in F major Antonio Vivaldi Trio sonata Op. 1/5 for two violins and basso continuo, RV 69 Violin sonata Op. 2/4, RV 20 Violin sonata Op. 5/1, RV 18 Violin concerto Op. 3/7 from L'estro armonico, for four violins