Craft a musical piece that integrates the provided melodic theme and the corresponding alphabetical pattern.
X:1
L:1/8
M:3/4
K:D
['(3geg a>f', 'A>c df/d/ e>c']  
X:1
L:1/8
M:3/4
K:D
|: A2 a>g (3bgb | a2 (3geg a>f | d2 (3geg a>f | d>f e>c A2- | A2 a>g (3bgb | a2 (3geg a>f | 
 d2 (3geg a>f | (3ece d4 :: A>c df/d/ e>c | A>c df/d/ e>c | A2 gf/g/ a>f | d>f e>c A2 | 
 A>c df/d/ e>c | A>c df/d/ e>c | A2 gf/g/ a>f | (3ece d4 :|  