Develop a musical arrangement based on the stated alphabetical form and the given motif.
X:1
L:1/8
M:4/4
K:A
['', 'AB c2 cc BABc ABcd e2 fg', 'agaf ecAc']  
X:1
L:1/8
M:4/4
K:A
 AB |: c2 cc BABc | ABcd e2 fg | agaf ecAB | f2 B2 B2 AB | c2 cc BABc | ABcd e2 fg | agaf edcB | 
 c2 A2 A2 AB :|2 c2 A2 A2 ce |: fefg agaf | ecAc e2 ce | fefg agaf | ecAc B2 AB | c2 cc BABc | 
 ABcd e2 fg | agaf edcB |1 c2 A2 A2 ce :|  