Teksti origjinal - Anglisht - I'm looking for a study on latitude.

what interests me above all is the preposition "on", how to translate it?
I would like it to be something like the "études" by Pierre Schaeffer:
Étude aux chemins de fer
Étude aux tourniquets
Étude aux casseroles
...

thanks,
Xini

(destination language: French French)