Construct a musical piece that contains the provided motif and abides by the prescribed alphabetical scheme.
X:1
L:1/8
M:4/4
K:A
['a2 ae', 'eAA B A/A/A ec acec A/A/Aec fBBa']  
X:1
L:1/8
M:4/4
K:A
 e | a2 ae fece | a2 ae fBBg | a2 ae fece | faec eAA :: B | A/A/A ec acec | A/A/Aec fBBa | 
 A/A/Aec acec | faec eAA :|  