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
Q:1/2=90
M:4/4
K:D
['dcdA FAdf edcB']  
X:1
L:1/8
Q:1/2=90
M:4/4
K:D
 A2 | dcdA FAdf | edcB Aceg | fefd gfge | cdBc Agfe | dcdA FAdf | edcB A2 g2 | fafd Bgec | 
 d2 d2 d2 ::  