Craft a piece of music that integrates both the suggested theme and letter-based structure.
X:1
L:1/8
M:2/4
K:D
['E>E Ec']  
X:1
L:1/8
M:2/4
K:D
"A" E>E Ec | BA Bc | E>E Ec |"F#m" BA F2 |"A" E>E Ec | BA Bc |"E" e>f ec |"A" BA A2 :|"A" c>e ec | 
 BA FE | c>e ec |"F#m" BA A>B |"A" c>e ec | BA FA | E>E Ec |"E" BA"A" A2 :|  