Construct a melodic piece using the alphabet-based musical sequence and the given motif.
X:1
L:1/8
Q:1/8=232
M:4/4
K:G
['BG Bd ed ef', 'd2 d2 e2 ce ge ce d2']  
X:1
L:1/8
Q:1/8=232
M:4/4
K:G
|: D2 | G3 A BG Bd | ed ef gd Bd | gf ge dB GB | AB AG E2 DE | G2 GA BG Bd | ed ef g2 ag | 
 fa fd eg fe | d2 f2 d2 :: d2 | e2 ce ge ce | d2 Bd gd Bd | c2 Ac B2 AB | AB AG E2 DE | 
 G2 BA BG Bd | ed ef gf ge | dB GB Ac BA | G2 B2 G2 :|  