Construct a melodic piece using the alphabet-based musical sequence and the given motif.
X:1
L:1/8
M:2/4
K:G
['', 'z/ d']  
X:1
L:1/8
M:2/4
K:G
 D || G>A Bc | d>e dB | c>d cA | [GB] z z D | G>A Bc | d>e dB | c>d cA | [GB]/ z/ d e>d | B>G GF | 
 F/ z/ d e>d | c>A AG | G/ z/ d gg | g>d ff | f>d f/e/d/c/ | BA BB | B/ z/ d e>d | B>G GF | 
 F/ z/ d e>d | c>A AG | G/ z/ d gg | g>d ff | f>d f/e/d/c/ | BA[GB][GB] | [GB] z z z |]  