Although some reprints try to be faithful to the original, the accuracy can vary greatly. Secondary source Translations, reprints, interpretations, reconstructions and books about the original work. I also use it to refer to general works on dance and dance collections from no particular source. The text is rendered into a language other than the original language. The quality of translations vary greatly.
Treatise Work discussing how to dance.
Will often cover dance and music theory, manners and behavior, and descriptions of how the steps of the dances are done. Usually includes dance instructions, with or without music.