Develop a musical piece that combines the given theme and letter-structured outline.
X:1
L:1/8
Q:1/8=128
M:4/4
K:Amin
['B<g g>d B<G']  
X:1
L:1/8
Q:1/8=128
M:4/4
K:Amin
|: A<e e>d c<A c2 | B<g g>d B<G B<d | A<e e>d c<A c2 | A<a g>e a>A c<e | A<e e>d c<A c2 | 
 B<g g>d B<G d<B | A/B/c/d/ e>A c<A c>B | A<a g<e a>A c<e | a/g/f/e/ a>e c<a e2 | B<g g>d B<G B<g | 
 a/g/f/e/ a>e c<a c<a | A<a e<a e>A c<e | a/g/f/e/ a>e c<a e2 | B<g g>d B<G B<d | 
 A/B/c/d/ e>A c<A c>B | A<a g<e a>A c<e :|  