Develop a musical work using the identified alphabetic pattern and the supplied melody as a theme.
X:1
L:1/8
Q:1/2=90
M:4/4
K:D
['fe dcdA FAdf edcB Agfe fafd']  
X:1
L:1/8
Q:1/2=90
M:4/4
K:D
 fe | dcdA FAdf | edcB Agfe | fafd bged | cdBc A2 fe | dcdA FAdf | edcB Agfe | fafd egec | 
 d2 d2 d2 ::  