Construct a musical composition following the given alphabetical structure and incorporating the specified motif.
X:1
L:1/16
M:2/4
K:A
['E2(3EFG A2A2 c2{d}cB c2e2 e2>f2 ecBc', "c'ac'a bgbg a2f2 e4 e2>f2 ecBc"]  
X:1
L:1/16
M:2/4
K:A
 E2(3EFG A2A2 | c2{d}cB c2e2 | e2>f2 ecBc | A2F2F2A2 | E2(3EFG A2A2 | c2{d}cB c2e2 | e2>f2 ecBc | 
 A4 [Acea]2 :: a2 | c'ac'a bgbg | a2f2 e4 | e2>f2 ecBc | A2F2F2a2 | c'ac'a bgbg | a2f2 e4 | 
 e2>f2 ecBc | A2 [Acea]2 :|  