Craft a musical piece that integrates the provided melodic theme and the corresponding alphabetical pattern.
X:1
L:1/8
M:2/2
K:G
['Bc dcBA GBdg fdcB cedc BABG', 'G2 Bc dBGB dBGB dcBA G2 AB', 'G2 Bc dggf gabg agfe d2 de']  
X:1
L:1/8
M:2/2
K:G
 Bc | dcBA GBdg | fdcB cedc | BABG FGAB | c2 A2 A2 Bc | dcBA GBdg | fdcB cedc | BABG FGAc | 
 B2 G2 G2 :| Bc | dBGB dBGB | dcBA G2 AB | cAFA cAFA | cBAG F2 BA | GABc d2 g2 | fdcB cedc | 
 BABG FGAc | B2 G2 G2 :| Bc | dggf gabg | agfe d2 de | fede fgag | fdcB c2 dc | BGBd gbag | 
 fdcB cedc | BABG FGAc | B2 G2 G2 :|  