Lute is a sentient fungus that has taken over the body of a dead adventurer that welcomed it because they were dying of their wounds. Lute now spends their days under the sun playing their lute, If you understand sylvan then it sounds faintly familiar and they would notice the plants, animals and wind reacting slightly to their music. If you spend 2d6 day with him you learn infestation, mold earth or gust once a day.