Compose a music piece that includes the specified motif while adhering to the outlined alphabetical sequence.
X:1
L:1/16
M:2/4
K:G
['g2fe d2c2', 'G2B2G2B2 GABc']  
X:1
L:1/16
M:2/4
K:G
 g2fe d2c2 | B2c2 d4 | g2fe d2g2 | fgaf d4 | g2fe d2c2 | B2c2d2B2 | B2AG AcAF | G4 G,4 :: 
 G2B2G2B2 | GABc d4 | F2A2F2A2 | FGAB c4 | G2B2G2B2 | GABc d2c2 | B2AG AcAF | G4 G,4 :|  