Craft a musical piece that integrates the provided melodic theme and the corresponding alphabetical pattern.
X:1
L:1/16
Q:1/4=100
M:2/4
K:D
['d2df e2eg f2a2 a4 f2ed']  
X:1
L:1/16
Q:1/4=100
M:2/4
K:D
|: A2 | d2df e2eg | f2a2 a4 | f2ed f2ed | e4 A2A2 | d2df e2eg | f2a2 a4 | f2ed e2dc | d4 D2 |:  