Create a musical composition adhering to the provided thematic and alphabetical guidelines.
X:1
L:1/8
Q:1/8=180
M:6/8
K:D
['dAF DFA BAG AFD BGB AGF', 'd2 f edc']  
X:1
L:1/8
Q:1/8=180
M:6/8
K:D
|: A | dAF DFA | BAG AFD | BGB AGF | EFG ABc | dAF DFA | BAG AFD | BGB AGF | EDC D2 :: A | 
 d2 f edc | d2 d cBA | BGB ABc | ded cBA | d2 f edc | ded cBA | BGB AGF | EDC D2 :|  