75-1: fuese diciendo: observe that the preterit (and its derived tenses) of ser and ir are identical.
75-2: He debido traerme: I should have brought back.
75-3: comérmela: me, ethical dative (like traerme).
76-1: Alpujarra: coast mountains of southern Spain near Almería, a ramification of the Sierra Nevadas. They formed the last refuge of the Moors.
76-2: hacia Levante: toward the east.