Compose a musical piece using the designated musical pattern's alphabetic representation and the assigned melodic theme.
X:1
L:1/8
M:6/8
K:G
['D GAG', 'G2 B c2 G cde ed^c d2']  
X:1
L:1/8
M:6/8
K:G
|: D | GAG GDE | GAG GAB | cec BdB | ABG E2 D | GDE G2 D | GAG GB/c/d | edc B/c/dG | AGF G2 :: B | 
 c2 G cde | ed^c d2 B | cdc B/c/dG | ABG E2 D | GD/D/D ED/D/D | GAG Bcd | edc BAG | A3 G2 :|  