Utilizing the provided musical theme and letter-based structure, compose a piece of music.
X:1
L:1/8
M:2/4
K:Eb
['G FE']  
X:1
L:1/8
M:2/4
K:Eb
 E>F GF | E B2 G | FE CC | C3 B | cB ee | c c2 c | GA G^F | G3 G/G/ | cc ed | c3 c | G<G (GF) | 
 G3 G | FE FG | B2 GG/F/ | (EC) C>B, | C4 |]  