F natural major is a major based on F sound, which consists of F, G, A,? B, C, D, E and F, and key signature has a flat sign. The relative minor is D minor and the parallel minor is F minor. Major is characterized by the formation of a major third degree relationship between the first sound and the third sound. Key signature in F major is obtained by lowering the B note in the third line of the staff by two degrees.
The interval size between each tone is "full half full half" in turn, which is the composition law of major. The whole scale is divided into "Do, RE, mifa"+"sol, LA, SIDO", which is called sound form. Each phoneme contains four tones with an interval distance of ".
Professional composition
According to the system of the law of twelve averages, we can start from any semitone (DO, # do, RE, # re, mi, FA, # fa, SOL, #SOL, la, # la, SI) and make a brand-new major according to the rhythm interval arrangement order of major, taking C major as an example: I, II, III, IV, V.
Extending all scales is a series of tones arranged in the order of whole tone, semitone and other intervals. The basic scale is the scale of C major, and all keys are used when playing on the piano. A major scale consists of seven tones, of which the third and fourth tones, the seventh and eighth tones are semitones, and the other tones are full tones. A minor scale is a semitone between the second and third notes and between the fifth and sixth notes.