New:   add-text-attributes &rest attributes   [Function]   Arguments and Values:   attributes        lists of attributes (playing techniques).   Description:   This functions allows you to add your own lists of attributes names (playing techniques) to the system.   Examples:   (add-text-attributes  '(ord-tasto "ord⟶tasto")  '(tasto-ponte "sul tasto⟶pont.")  )   '(h c4 ppp> ord-tasto+le