Utilize the alphabetic system of the specified musical pattern and the supplied melodic theme to create a piece of music.
X:1
L:1/8
M:4/4
K:D
['fedc d2']  
X:1
L:1/8
M:4/4
K:D
|:"D" dAFA D2 AD | dAFD"G" GABG |"D" dAFA D2 (3Bcd |"A" edBA FABc |"D" dAFA D2 AD | dAFD"G" GABG | 
"A" ABcd ecde |1"D" fedc d2 AB :|2 fedc d2 (3ABc |:"D" dAFA eAFA | fAeA dA(3FGA |"A" cAEA eAEA | 
"G" gAfA"A" eA(3GAB |"D" dAFA eA(3FGA | fAeA dAFA |"G" dBAG"D" FGAd |1 fedc d2 (3ABc :|2 
 fedc d2 AB ||  