Craft a musical piece that integrates the provided melodic theme and the corresponding alphabetical pattern.
X:1
L:1/8
M:3/4
K:G
['B3 e']  
X:1
L:1/8
M:3/4
K:G
 d2 B3 e | dc B3 c | dg f2 e2 | ed B3 e | AB c2 A2 | Bc d3 G | BA c3 F | AG G4 |]  