Compose a piece using the specified musical pattern based on the alphabet and the provided melodic theme.
X:1
L:1/8
M:2/2
K:G
['G3 A']  
X:1
L:1/8
M:2/2
K:G
|: d |"G" gf"Am"ge"G" decd |"G" Bc"D7"dc"G" BcAB | GFGA BcdB |"Am/C" AG"A7/C#"FE"D" D3 d | 
"G" gf"Am"ge"G" decd |"G" Bc"D7"dc"G" BcAB | GFGA BcAB |"G" G2 B2 G2 :: dc |"G" Bc"D"AB"Em" G3 A | 
"D" Bc"B7"AB"Em" G3 A |"G" BcdB"Em" edcB |"Am" A^GAB"D" A3 d |"G" Bc"D"AB"Em" G3 A | 
"D" Bc"B7"AB"Em" G3 A |"G" BcdB"D" AGAB |"G" G2 B2 G2 :|  