Craft a musical piece that integrates the provided melodic theme and the corresponding alphabetical pattern.
X:1
L:1/16
M:2/4
K:D
['GFED A4 Bcde dcBA', 'GBEG FAdf']  
X:1
L:1/16
M:2/4
K:D
 D2D2 D2D2 | GFED A4 | Bcde dcBA | BAGF (F2>E2) | D2D2D2D2 | GFED A4 | Bcde dcBA | cBA^G A4 :: 
 A2A2 G2B2E2G2 | FAdf ecAF | GBEG FAdf | edcB (B2>A2) | A2A2 GBEG | FAdf ecAF | GBEG FAdf | 
 fedc d4 :|  