Craft a musical piece that integrates the provided melodic theme and the corresponding alphabetical pattern.
X:1
L:1/4
M:4/4
K:D
['d d']  
X:1
L:1/4
M:4/4
K:D
 d d B2 | A G A G | E D3 | G G G A | B B B A | A B A2 | d d d B/G/ | A G A G | G/A/ G/E/ D2 | 
 G G G D | G A A B/A/ | D4 | d d d B/G/ | A G E G | E2 D2 | G G G G/A/ | B B B A | A B B A | 
 d d d d | d B A G | E G D2 | G/G/ G G G | A B A G | A G A A | B A G2 |]  