Craft a musical piece that integrates the provided melodic theme and the corresponding alphabetical pattern.
X:1
L:1/8
M:4/4
K:D
['F2 FE']  
X:1
L:1/8
M:4/4
K:D
 dcBA F2 FE | DF (3FFF DF (3FFF | ABcd F2 FE | DEFD B,E E2 :|  