Craft a musical piece that integrates the provided melodic theme and the corresponding alphabetical pattern.
X:1
L:1/8
M:2/2
K:D
['DEFG A2', 'D2 DEFG A2 (AB) cAdB cAGE Addc', 'd2 (fd)', 'd2 fd']  
X:1
L:1/8
M:2/2
K:D
 DEFG A2 (AB) | cAdB cAGE | DEFG A2 (AG) | EFGE (FD) D2 || DEFG A2 (AB) | cAdB cAGE | Addc dfed | 
 cAGE FD D2 |] d2 (fd) efge | d2 (fd) edcB | AGAB c2 (cB) | EFGE (FD) D2 || d2 fd efge | 
 d2 fd edcB | Addc dfed | cAGE FD D2 |]  