Compose melodious music utilizing the prescribed letter representation and integrating the given thematic element.
X:1
L:1/8
M:2/4
K:Eb
['B G']  
X:1
L:1/8
M:2/4
K:Eb
 c2 c2 | z e c B | B G B2- | B2 G B | c2 e2 | z B2 G | B G F2- | F2 c2 | c2 z e | c B B G | B4 | 
 G B c2 | e2 z B- | B G B G | F4 | B3 G | F G F E | F D C2 | z C2 E | B G F2 | z C2 E | B G F2 | 
 z B2 C | E F D C | B,4 |]  