Compose a piece using the specified musical pattern based on the alphabet and the provided melodic theme.
X:1
L:1/8
M:2/4
K:F
['d2 Ac f2 d2']  
X:1
L:1/8
M:2/4
K:F
 fcdd | fc d2 | f2 d/f/d/c/ | d4 | Adcc | Ad c2 | z c2 G | A4 | AGAc | F2 GA | c2 z F- | FGFC | 
 D4 | Ad | c2 | Ac- | cf | d2 | Ac- | cf | d2 Ac | f2 | d2 | Ac | f2 | d2 | cG | A4 |]  