Compose a music piece that includes the specified motif while adhering to the outlined alphabetical sequence.
X:1
L:1/8
M:4/4
K:G
['BcBA GBDB GBAG', 'Bcde d2 Bc']  
X:1
L:1/8
M:4/4
K:G
 BcBA GBDB | GBAG FGAc | B2 AG GFGB | A^GAB cedc | BcBA GBDB | GBAG FGAB | dBBA BGAG | FEFG ABcA :: 
 Bcde d2 Bc | dBgb afgd | Bcdg edcB | ceaf gefd | Bcde d2 Bc | dBgB aBga | bgaf gefd | ceaf gefd :|  