an extreme delicacy and softness
• (n.) A term used as a direction in execution, signifying, with extreme delicacy. • (n.) Delicacy or softness in the representation of flesh.
Mor`bi·dez'za noun [ Italian , softness, delicacy. See Morbid .] 1. (Fine Arts) Delicacy or softness in the representation of flesh. 2. (Mus.) A term used as a direction in execution, signifying, with extreme delicacy. Ludden. 
In music, morbidezza is a term used as a direction in execution, signifying, with extreme delicacy.
the effect of extreme softness and delicacy in pictorial and sculptural representations.