Create a musical composition employing the given alphabetic structure and melodic theme.
X:1
L:1/8
M:3/8
K:G
['BGG |{G} e2 d cBA', 'BGG |{G} e2 d cBA']  
X:1
L:1/8
M:3/8
K:G
 BGG |{G} e2 d | cBA |{G} FED | BGG |{G} e2 d | cBA | G3 :: gg/a/g/a/ | ff/g/f/g/ | ee/f/g/e/ | 
 d2 d | gg/a/g/a/ | ff/g/f/g/ | ee/f/g/e/ | d2 d | BGG |{G} e2 d | cBA |{G} FED | BGG |{G} e2 d | 
 cBA | G3 ||  