Craft a musical composition that adheres to the specified musical theme and letter-based structure.
X:1
L:1/8
M:4/4
K:A
['d>B G<B']  
X:1
L:1/8
M:4/4
K:A
|:"A" A,>C E<A"D" F<A"A/C#" E<c |"Bm" d>B d/c/B/A/"E" G<B B2 |"A" A,>C E<A"D" F<A"Bm" d>f | 
"E7" e>c d/c/B/A/"A" E<A A2 |"A" A,>C E<A"D" F<A"A/C#" E<c |"Bm" d>B d/c/B/A/"E" G<B B2 | 
"A" A,>C E<A"D" F<A"Bm" d>f |"E7" e>c d/c/B/A/"A" E<A A>e || |"A" a>e c>e"D" f<a"A/C#" e>c | 
"Bm" d>B d/c/B/A/"E" G<B B>g |"A" a>e c>e"D" f<a"A/C#" e>c |"Bm" (3d/e/f/"E7" e>d"A" c<A A>g | 
"A" a>e c>e"D" f<a"A/C#" e>c |"Bm" d>B d/c/B/A/"E" G<B B>d |"A" c<A e>c"Bm" d<B"D" f>d | 
"A/E" (3c/d/e/"E7" e/f/g/ |"A" a<A A2 :|  