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
['', 'DFA ABc dcB A2 A B2 E', 'D3 DFA ABc dcB A2 A Bcd', '', 'ece dcB A2 A B2 E EFG', 'ece dcB A2 A Bcd edc d3']  
X:1
L:1/8
M:6/8
K:D
"^A" |: DFA ABc | dcB A2 A | B2 E EFG | FEF D3 || DFA ABc | dcB A2 A | Bcd edc | d3 d3 :|"^B" |: 
 fdf ece | dcB A2 A | B2 E EFG | FEF D3 || fdf ece | dcB A2 A | Bcd edc | d3 d3 :|  