Craft a musical piece that integrates the provided melodic theme and the corresponding alphabetical pattern.
X:1
L:1/8
M:6/8
K:D
['d2 f', 'd e2']  
X:1
L:1/8
M:6/8
K:D
 d |O Ddd d2 f | d2 d d2 f | g2 f e2 d | c2 d e2 f | d2 d d2 f | dfa d2 f | e2 d e2 f | d3 d2 :: 
 d | e2 e e2 d | c2 d e2 f | g2 f e2 d | c2 d e2 z | efe e2 d | c2 d e2 f | efd cdB | ABA GFEO :|  