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
['F2 DF Ad f2 ffef g2 bg']  
X:1
L:1/8
M:3/4
K:D
 AB AG | F2 DF Ad | f2 ffef | g2 bg fg | B2 BdcB | A2 EF GA | c2 B2 c2 | F2 FDFB | A2 ABAG | 
 F2 DF Ad | f2 ffef | g2 bg fg | B2 BdcB | A2 EF GA | c2 B2 c2 | d3 A FA | D3 A BA | G2 GABA | 
 c2 cABA | F2 FDFA | d2 c2 d2 | e4 ef | e2 A2 G2 | F2 FEFG | F2 E2 F2 | G2 GABA | c2 cABA | 
 F3 D FA ||  