Build a musical arrangement using the indicated alphabet-based system and the given motif.
X:1
L:1/8
M:4/4
K:A
['', 'c2 cB A2 ce fece fgaf', 'Aceg a2']  
X:1
L:1/8
M:4/4
K:A
 ed |: c2 cB A2 ce | fece fgaf | edcB Adcd | BAGA BcdB | c2 cB A2 ce | fece fgaf | eaga fedc | 
 BEGA BdcB :| Aceg a2 ga | bgeg a2 ec | Aceg a2 ec | BAGA BdcB | Aceg a2 ga | bgeg a2 ec | 
 Acec dfBa | befg a2 ed :|  