Answer: Learning
Step-by-step explanation:
Process of learning is defined as the ability to attaining new knowledge ,skill , action,values, thoughts, acts etc to modify the current behavior and state of mind. Mind is responsible for acquiring the modification to gain optimized learning.This process can be induced through practice, gaining information, focusing and understanding the process etc.
According to the question, Tamara is involved in the learning process as she is practicing to play piano with both the hands and she succeeds to acquire the change in her piano playing behavior.