La Gamme. Sonate à la Marésienne

Some highly unusual scales.
“Mr Marin Marais surprised musical connoisseurs with his pieces La Gamme [“The Scale”], which is a piece de symphonie that imperceptibly ascends the steps of the octave; one then descends, thereby going through harmonious songs and melodious tones, the various sounds of music.” (Titon du Tillet, in Le Parnasse Français)