Compose a piece of music by integrating the assigned letter representation and provided tune.
X:1
L:1/8
M:4/4
K:Cmin
['C ECGC DCGC DCB,F DB,FD ECGC EGcd', 'egcg ecgc']  
X:1
L:1/8
M:4/4
K:Cmin
 C | ECGC DCGC | DCB,F DB,FD | ECGC EGcd | ecG=B cCC :| g | egcg ecgc | dfBf dBfB | egcg ecgc | 
 fdBf eccg | ecgc GcGE | DBFB DB,FD | ECFD GEcG | BGFD ECC ||  