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:Dmix
['cBAG FD D2', 'eg g2']  
X:1
L:1/8
M:4/4
K:Dmix
 c3 B c2 AB | cBAG FD D2 | Add^c defe | dcAG FGAB | c2 cB c2 AB | cBAG FD D2 | DEFG ABcA | 
 dcAG FDDB | c3 B cBAB | cBAG FGAB | Add^c defe | dcAG FGAB | c2 cB cBAB | cBAG FD D2 | DEFG ABcA | 
 dcAG FD D2 |: eg g2 aggf | eggf ed^cd | ea a2 baag | eaag ed^cd | eg g2 agge | effe defg | 
 afge fde^c |1 dcAG FD D2 :|2 dcAG FGAB ||  