his mentor shifted melodies without the slightest pause , a strident tone with urgency a little dangerous he did not know the ballad ; he could not sing the words ; his mentor winked and then began amid the eerie chords : the land that i was walking through was lush with greenery ; it surrounded me with pleasantness and lovely scenery ; the trees were set in careful groves with glens at every turn ; the flowers were like beauty froze within the misty morn .