Utilize the given musical motif and the alphabetic representation of the specified sequence to create a musical piece.
X:1
L:1/8
Q:1/2=80
M:2/2
K:D
['A2 AB A2', 'a2 ab a2']  
X:1
L:1/8
Q:1/2=80
M:2/2
K:D
 FG | A2 AB A2 FG | AFAB A3 B | AGFE DEFG | A2 AB A2 FA | B2 Bc B2 FA | BABc B2 dB | AGFE DEFA | 
 B2 Bc B2 b2 | bafb afeg | fedf e2 de | fedc BAdF | A2 AB A2 dc | B2 AB d2 cd | e2 de f2 ed | 
 BABc d2 F2 | E4 D2 :: fg | a2 ab a2 fg | agab a2 fg | agfe defg | a2 ab a2 fa | b2 bc' b2 fa | 
 bafa b2 bg | agfe defa | b2 ba b2 fa | bafb afeg | fedf e2 de | fedc BAdF | A2 AB A2 dc | 
 B2 AB d2 cd | e2 de f2 ed | BABc d2 F2 | E4 D2 :|  