Utilize the provided motif and the alphabetically represented musical sequence to craft an original musical composition.
X:1
L:1/8
M:4/4
K:Amin
['', 'c<A A>G', 'c>de>f g>ag>e']  
X:1
L:1/8
M:4/4
K:Amin
 e |: c<A A>G E<AA>B | c<AA>c c<ee>d | c<A A>G E<AA>c | B<GG>B d2 d>B :| c>de>f g>ag>e | 
 c>de>f g2 g>e | c>de>f g>ag>e | B<GG>B d2 d>B | c>de>f g>ag>e | c>de>f g2 g>a | _b>ga>^f g>d=f>d | 
 B<GG>B d4 ||  