Develop a musical composition by incorporating the suggested motif and by following the prescribed format.
X:1
L:1/8
Q:1/4=120
M:2/2
K:Amin
['ABcd eage cBcc e2 d2', "[A,A]2 eg |[M:2/2] agab (c'2 a2) bagb", 'Bd cded c A2 E G2 A2'  
X:1
L:1/8
Q:1/4=120
M:2/2
K:Amin
"^Fast" AG | EDEG ABcd | eage cBcc | e2 d2 cAGF | ECEA GFDB, | CDEG ABcd | eage cBcc | e2 d2 cAGD | 
[M:3/2] (E [A,A]3) [A,A]4- [A,A]2 :: eg |[M:2/2] agab (c'2 a2) | bagb ag e2 | ([ee]d)ef gecd | 
 edce dc [GA]2 | [GA]3 B cBcd | eage cBcc | e2 d2 cAGD |[M:3/2] (E [A,A]3) [A,A]4- [A,A]2 :| 
"^Alternate 'A'" AG | EDEG A2 Bd | cded c A2 E | G2 A2 GEDB, | CDEA GFDB, | CDEG ABcd | eage cBcc | 
 e2 d2 cAGD |[M:3/2] (E [A,A]3) [A,A]4- [A,A]2 :|  