Compose a piece of music by integrating the assigned letter representation and provided tune.
X:1
L:1/8
M:3/4
K:Eb
['B>A G2 z2']  
X:1
L:1/8
M:3/4
K:Eb
 B>A G2 z2 | B>A G2 z2 | Be d3 c | c>BBefe | e>ddedc | c>BBBcB | B>AAcBA | G2 z4 |]  