How big is D-mode?

If D is taken as the palace key, the feather key is taken as B, and the instrumental scale is based on pentatonic scale, in which the attenuation and palace variation are added, and the scale is B-up C D E-up F-up G A B.

If D is a feather, then the feather is D, F mode, and the scale is D E F G A B C D

Mode, a number of musical tones with different heights, are organized together according to a certain interval relationship around a center tone with a sense of stability, and become an organic system, which is called mode. Mode is a musical organizational structure created by human beings in their long-term musical practice. Usually, when expounding the concept of mode, the central tone of mode-tonic tone is often used as the starting point and the end point, and other sounds are arranged in the form of scale in pitch order, which is called mode scale. In different historical periods, different nationalities and regions have formed various models. Various modes have their own characteristics and expressive force because of their scale structure, the relationship between modes and their different rhythms. The combination of mode and other expressive techniques can give music certain expressiveness and different styles.