Create a musical composition adhering to the provided thematic and alphabetical guidelines.
X:1
L:1/8
M:2/4
K:G
['G>A BA BG GB Ae ed eA', 'dg ea ag ae ef g>f ge']  
X:1
L:1/8
M:2/4
K:G
|: G>A BA | BG GB | Ae ed | eA AB | c>B ce | d/c/B/A/ GB | A>c BA |1 GE EF :|2 GE E2 |: g>f ga | 
 gd dg | ea ag | ae ef | g>f ge | d/c/B/A/ GB | A>c BA |1 GE E2 :|2 GE EF ||  