Compose a piece of music that follows both the given musical theme and the letter-based structure provided.
X:1
L:1/8
M:3/4
K:G
['c<A B2-', 'd2- dg f<d']  
X:1
L:1/8
M:3/4
K:G
 d c<A |:"Em" B2- BG A/B/c |"D" d2- dd c<A |"Em" B2- BG F/G/A |"D" D2- Dd c<A |"Em" B2- BG A/B/c | 
"D" d2- dg f<d |"C" c2- cB A<B |1"G" G2- Gd c<A :|2"G" G2- Gg f<d |:"C" e2- ed c/d/e | 
"D/F#" d2- dg f<d |"C" e2- ed c/d/e |"Am" A2- Ad c<A |"Em" B2- BG A/B/c |"D" d2- dg f<d | 
"C" c2- cB A<B |1"G" G2- Gg f<d :|2"G" G2- Gd c<A ||  