Create a musical composition adhering to the provided thematic and alphabetical guidelines.
X:1
L:1/8
M:6/8
K:D
['AFA AFA', 'def afa', 'fef fef']  
X:1
L:1/8
M:6/8
K:D
|: ud/B/ | AFA AFA | BGB BdB | AFA Ade | fed BdB | AFA AFA | BAB BAB | def afe | fdB B2 :: uA | 
 def afa | baf afe | def afe | fdB BAB | def afa | bag agf | gfg fef | dBB B2 :: A | def{g} fef | 
 fef fef | def fef | edB{d} BAB | def fef | fef fef | baf fef | dBB B2 :|  