Compose a piece of music by integrating the assigned letter representation and provided tune.
X:1
L:1/8
M:4/4
K:G
['g4 g2 ag fefg f2 ed e2']  
X:1
L:1/8
M:4/4
K:G
|:"D7" DEGA"G" G3 A |"G" BGBd"Em" g2 fd |"C" e3 g edBG |"Am" A2 BA"C" GEEG |"D7" DEGA"G" G3 A | 
 BA (3Bcd"Em" gGfG |"C" e3 g edBG |1"Am" A2 BA"C" G3 E :|2"D7" A2 BA"G" G2 Bd ||"Em" | g4 g2 ag | 
"Bm" fefg f2 ed |"C" e2 cd efge |"D" dBAB"G" G4 |"Em" | g4 g2 ag |"Bm" fefg f2 ed |"C" e2 cd efge | 
"D" dBAB"G" G4 |"Em" g4 g2 ag |"Bm" fefg f2 ed |"C" e2 cd e2 ge |"Am" dBAB"C" GEEG | 
"D7" DEGA"G" G3 A |"G" BG (3Bcd"Em" g2 fd |"C" e3 g edBG |"Am" A2 BA"G" G4 ||  