Compose a piece using the specified musical pattern based on the alphabet and the provided melodic theme.
X:1
L:1/8
Q:1/4=120
M:9/8
K:G
['G/A/ BdB AGA BGG', 'DEG A2 A A2 B']  
X:1
L:1/8
Q:1/4=120
M:9/8
K:G
"^Gaily." G/A/ | BdB AGA BGG | BdB AGB A2 G/A/ | BdB AGA BGG | cBA BGE E2 || | D | DEG A2 A A2 B | 
 GED G2 G G2 E | DEG A2 A A2 B | B2 A AGE E2 |]  