Develop a musical composition using the outlined alphabetical depiction of the structure and the provided theme.
X:1
L:1/8
M:6/8
K:Amin
['ABc BG^F GB/c/d edc', 'Acd B3 dBG AB/c/d ecA de/f/g agf']  
X:1
L:1/8
M:6/8
K:Amin
|: EAA ABc | BG^F GB/c/d | edc BA^G | ABc BGF | E3 ABc | BG^F GB/c/d | edc BAG |1 EA^G A=GF :|2 
 EA^G ABc |: d2 f fgf | ecA Acd | B3 dBG | AB/c/d ecA | de/f/g agf | ecA Adc | B3 cAG |1 A3 ABc :|2 
 AcA BGF ||  