Develop a piece of music by incorporating the provided motif and following the outlined musical structure represented by alphabet characters.
X:1
L:1/8
M:4/4
K:Amin
['B, C>B,A,<A E<A,A,>C B,>A,G,<G D<G,G,>B, C>B,A,<A E<A,A,>d', '^c>eA>e c<AA>c']  
X:1
L:1/8
M:4/4
K:Amin
 B, | C>B,A,<A E<A,A,>C | B,>A,G,<G D<G,G,>B, | C>B,A,<A E<A,A,>d | B<Gd>B A2 A2 :| B | 
 ^c>eA>e c<AA>c | B<Gd>d B<GG>B | ^c>eA>e c<AA>c | B<Gd>B A2 A2 B | ^c>eA>e c<AA>c | 
 B<Gd>d B<GG>B | ^c>ed>B =c>AB<G | A<EG>B, A,2 A,2 ||  