Craft a musical piece that integrates the provided melodic theme and the corresponding alphabetical pattern.
X:1
L:1/8
M:2/4
K:D
['AA B/A/ F A A2 B/ A/']  
X:1
L:1/8
M:2/4
K:D
 AA B/A/ F | A A2 B/ A/ d | d(B/A/) F D2 | C3/2 C/ B,3/2 B,/ | B,B, B B2 | GG E/E/ F | G E2 F | 
 ^G A4- | A=G F3 (2:3:2.F3 .F3 .F3 | .D4 | z4 |]  