Construct a melodic piece using the alphabet-based musical sequence and the given motif.
X:1
L:1/8
Q:1/4=180
M:10/8
K:C
['ed cB']  
X:1
L:1/8
Q:1/4=180
M:10/8
K:C
 fg ab c'b ag fe | de fa g=f ed cB | =fe df ed cB AG | AB cd ef g a2 z | fg ab c'b ag fe | 
 de fa g=f ed cB | =fe df ed cB AG | A2 =fe dc B A2 z ||  