Craft a musical work based on the specified structure and given theme.
X:1
L:1/8
M:2/2
K:G
['(3DEF G2 Bd gagf ABAF DEFG'  
X:1
L:1/8
M:2/2
K:G
 (3DEF |"G" G2 Bd gagf |"C" edcB"Am" ABAF |"D7" DEFG ABAF |"G" GFGB"D7" d2 (3DEF |"G" G2 Bd gagf | 
"C" edcB"Am" ABAF |"D7" DEFG A2 .e2 |"D7" dcBA"G" G2 :: Bc |"G" dBGA BGBc |"G" dBGB"Am" A2 AB | 
"D7" cAFA DFAB |"D7" cAFA"G" d2 Bc |"G" dBGA BGBc |"G" dBGB"Am" A2 AB |"D7" cAFA D2 .e2 | 
"D7" dcBA"G" G2 :|  