Craft a musical piece that integrates the provided melodic theme and the corresponding alphabetical pattern.
X:1
L:1/4
M:3/4
K:G
['A/ B']  
X:1
L:1/4
M:3/4
K:G
 B3/2 A/ B | A G E | D2 D | E G G | G2 D | G3/2 A/ B | c B A | d2 d | B G B | A2 d | d3/2 B/ A | 
 G3/2 A/ B | c d e | d B G | A2 G/A/ | B3/2 A/ B | A G E | D2 D | E G G | G2 |]  