Craft a musical piece that integrates the provided melodic theme and the corresponding alphabetical pattern.
X:1
L:1/8
M:6/8
K:G
['d2 B', 'FAc cAF GBd']  
X:1
L:1/8
M:6/8
K:G
 d2 B d2 B | G2 G GAB | c2 A c2 c | FAF D3 | d2 B g2 d | e2 c g2 e | edc BcA | G3 G3 :: FAc cAF | 
 GBd dBG | FAc cAF | GBd d3 | ece ege | dBd dgd | edc BcA | G3 G2 :|  