Compose a music piece that includes the specified motif while adhering to the outlined alphabetical sequence.
X:1
L:1/8
M:2/4
K:G
['dc BG BG BdcB AF AF AcBG', 'g2 fe d2']  
X:1
L:1/8
M:2/4
K:G
 dc | BG BG BdcB | AF AF AcBG | BGBd gdBG | A2 AA A2 :: GA | BG Bd g2 fe | d2 d>e de z | 
 BGBd gdBG | A2 A>B A2 GA | BGBd g2 fe | d2 d>d d3 c | BdBG AcAF | G2 G>G G2 :|  