Utilizing the provided musical theme and letter-based structure, compose a piece of music.
X:1
L:1/8
M:6/8
K:G
['G GFG']  
X:1
L:1/8
M:6/8
K:G
|:"G" D2 G GFG | B2 G GFG |"Am" E2 A A2 B |"D7" cAG FED |"G" D2 G GFG | B2 G G2 z |"D7" FED DEF | 
"G" GAB"D7" A2"G" G ::"G" G2 B"C" c2 e |"G" d2 e dBG |"G" G2 B"C" c2 e |"G" dBG"D7" A2 z | 
"G" G2 B"C" c2 e |"G" d2 e dBG |"G" G3 BAG |1"D7" FDF"G" G2 z :|2"D7" FDF"G" G2 B |:"Am" c2 A AGA | 
"G" B2 G GFG |"D7" F2 G A2 B |"D7" c2 A F2 D |"Am" c2 A AGA |"G" B2 G GFG |"D7" FED DEF | 
"G" GAB"D7" A2"G" G :|  