Construct a melodic piece using the designated alphabetic pattern and the provided musical theme.
X:1
L:1/8
M:2/4
K:F
['AABB c2']  
X:1
L:1/8
M:2/4
K:F
 AABB | c2 A z | BBAA | A2 G z | AABB | c2 d z | ccEE | F3 z | AABB | c2 A z | BBAA | A2 G z | 
 AABB | c f2 d | ccEE | F2 z2 |]  