Construct a melodic piece using the alphabet-based musical sequence and the given motif.
X:1
L:1/8
M:2/4
K:G
['BB B/c/d ee e2', 'BB B/c/d ee e2']  
X:1
L:1/8
M:2/4
K:G
 BB B/c/d | ee e2 | ddde | d2 B2 | BB B/c/d | ee e2 | dd d/c/B | A2 G2 || g2 f2 | e2 d2 | ggff | 
 ee d2 | BB B/c/d | ee e2 | ddde | d2 B2 | BB B/c/d | ee e2 | ddgG A2 G2 ||  