Construct a melodic piece using the alphabet-based musical sequence and the given motif.
X:1
L:1/8
M:6/8
K:Gmix
['d2 d', 'B2 B cBc']  
X:1
L:1/8
M:6/8
K:Gmix
 g2 g gfe | d2 G GGG | d2 d dec | dec d2 c | B2 B BcB | d2 d ded | f2 f fed | ced ced :| B2 B cBc | 
 d3 d2 c | B2 B cBc | dcB G3 | B2 B cBc | d3 d2 e | f2 f fed | ced ced :|  