|| Blue and aurum musicum, the two colors
belong together on the foliage, one on the right, the other on the left.
Here, too, you shall first draw the foliage and then trace it with a pen
with thin black color or with thin ink, then polish; and then paint with
the blue or with aurum musicum, one side blue, the underside aurum musicum,
as you want to arrange it, as it is shown here.
Then draw around both of them with dark red, all around, namely the above named two colors, as it is shown here.
Then take again dark red and thin it, and shade with it the two colors in the same way as the minium and the purple, as is shown here.
Then shade them with the red the same as the above named colors, as it is shown here.
Source: Hellmut Lehmann-Haupt, The Göttingen Model Book. Columbia 2nd ed. 1978