Utilizing the provided musical theme and letter-based structure, compose a piece of music.
X:1
L:1/8
M:4/4
K:Emin
['', 'G2 B>c', 'G2 G>F G2']  
X:1
L:1/8
M:4/4
K:Emin
 d>c |: B>GD>B, C2 B,>C | D>E (3FED G2 B>c | d>g (3ggg f>dc>A | d>Bc>A B>GA>F | G>FD>B, C2 B,>C | 
 D>E (3FED G2 B>c | d>g (3ggg f>dc>A |1 d>Bc>A G2 d>c :|2 d>BA>F G2 B>c |: d>d g>e d>BG>B | 
 c>Bc>e A>GF>E | D2 (3EFG d>B (3cBA | d>ef>g a>fdf | g>g (3efg a>fd>f | g>fg>a f>dd>c | 
 A>B (3cBA d>cA>F |1 G2 G>F G2 B>c :|2 G2 G>F G2 z2 ||  