What evidence shows the eccentric and flamboyant behavior of Aldo Frescobaldi, the violinist whom Claude accompanies?

The evidence that shows the eccentric and flamboyant behavior of Aldo Frescobaldi, the violinist whom Claude accompanies, is that although the maestro has a large body, he also has a high energy level, so he and Claude have lunch at an Italian restaurant for the maestro to load up on carbohydrates to replenish his energy. After filling up at lunch, Frescobaldi naps for a while. After performing at a concert in Philadelphia, Claude notices that two women join Frescobaldi in his room for the night.