How did fathers sweet singsong voice effect Jonas on their last evening together?

In "The Giver" by Lois Lowry, Jonas is deeply affected by his father's sweet, singsong voice during their last evening together. This comforting tone evokes a sense of warmth and love, making Jonas feel a profound connection to his father. However, it also heightens his internal conflict as he grApples with the reality of his father's role in the community's suppression of emotions and the darker truths Jonas has come to understand. The juxtaposition of his father's gentle voice and the harsh realities of their society amplifies Jonas's feelings of isolation and despair.