Compose a musical piece using the designated musical pattern's alphabetic representation and the assigned melodic theme.
X:1
L:1/8
M:2/4
K:G
['d>c BG G2']  
X:1
L:1/8
M:2/4
K:G
|:"G" d2"D7" d>c |"G" BG G2 |"Am" cA"D7" d>c |"G" BG G2 | d2"D7" d>c |"G" BG G2 |"Am" cA"D7" F>A | 
"G" G2 Gd ::"G" Bd d>B |"C" ce ed/c/ |"G" Bd d>B |"D7" cA A2 |"G" Bd dd/B/ |"C" ce e>d | 
"G" Bd"D7" c>A |"G" BG G2 :|  