It's official to sing trumpet hard-pen calligraphy to the emperor. How to write the grid?

From right to left and from top to bottom. According to relevant records, the hard-pen calligraphy of Chanting Trumpet to the Emperor of North Korea was written from right to left and from top to bottom. Blowing the Horn to the Emperor is the representative work of Wang Pan, a writer of Sanqu in Ming Dynasty. This is a poem, which can be divided into four layers. On the first floor, the most prominent feature of trumpet and suona is that the tune is small and the cavity is big, which means that the villain is proud. On the second floor, the purpose of saying trumpet and suona is to raise the price of official ships that run like hemp, that is, for official use. The third floor shows the other side of the purpose of trumpet and suona: harming the army and the people. On the surface, this song is written about horns and suona, but in fact it is written about eunuchs everywhere.