Compose a piece of music that combines the given melodic theme with the assigned alphabetical pattern.
X:1
L:1/8
Q:1/2=75
M:4/4
K:G
['gfed efge dcBA Bc d2 gfed efgg', 'g4 gabg af d2 efge dB G2', 'G4 BcdB cd e2 ABcA Bc d2']  
X:1
L:1/8
Q:1/2=75
M:4/4
K:G
|: gfed efge | dcBA Bc d2 | gfed efgg | fgaf g4 :: gabg af d2 | efge dB G2 | ABcA | dBGB | 
 cAFA G4 :: BcdB cd e2 | ABcA Bc d2 | G3 B cBAd | BGAF G2 G2 :|  