Having practised some Liszt - it's getting better, slowly - I turned to The Short-Tempered Clavier
by P.D.Q.Bach: Preludes and Fugues in All the Major and Minor keys Except for the Really Hard Ones (S. 3.14159, easy as)
with performance notes in five languages!
If I tell you that one of those languages is Hieroglyphics and that:
1. Trills begin on the upper auxilliary note.
Is translated into French as:
1. Decouper le lapin en morceaux en reservant le foie.
You'll get the gist of it!