Develop a musical composition using both the specified melodic theme and the alphabetical pattern naming.
X:1
L:1/8
M:6/8
K:D
['dBA ddd efa f3 efa fed', 'efa fed edB']  
X:1
L:1/8
M:6/8
K:D
|: dBA ddd | efa f3 | efa fed | edB dBA | dBA ddd | efa f3 | efa fed |1 edB dBA :|2 edB def |: 
 a3 f3 | efa fff | efa fed | edB def |1 a3 f3 | efa fff | efa fed | edB def :|2 dBA ddd | efa f3 | 
 efa fed | edB dBA ||  