Answer:
Explanation:
The system of diatonic triads is the basis of tonal harmony in music. Triads are classified according to intervals formed above the root.
 
        
             
        
        
        
The drawing was based off the correlations of the ideal human body proportions described by the ancient Roman architect Vitruvius 
        
                    
             
        
        
        
He only started painting when he was 27 years old. 
His life is documented on the letters he has wrote. 
Before declaring he was an artist, he attempted many other careers. 
For most of his life he had a mental illness. 
He cut off his own ear.