A new piece for your consideration, in which (as you can see below) it’s the same piece whether the score is right-side-up or upside-down. The title is a famous saying in Hermeticism.¹

Here it is right-side-up:

Here it is upside-down — rotated 180°. (Of course each note head will be at the end of its duration instead of the beginning.)

Here’s the pdf: As Above, So Also Below

Here’s the mp3, for glass armonica, clarinet and bassoon:

1. See Wikipedia