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
['GBA G2 B', 'ege edB']  
X:1
L:1/8
M:6/8
K:G
 D | GBA G2 B | def gdB | GBA G2 B | AFD AFD | GBA G2 B | def gfg | ege dBA | BGF G2 :: d | 
 ege edB | def gfg | ege edB | dBA ABd | ege edB | def gfg | ege dBA | BGF G2 :|  