Compose a piece of music that follows both the given musical theme and the letter-based structure provided.
X:1
L:1/8
Q:1/8=130
M:4/4
K:D
['A>A A2 A/B/c/d/ e2 e>e', 'd2 d>d']  
X:1
L:1/8
Q:1/8=130
M:4/4
K:D
 FA | d2 d>d d2 fd | A2 A>A ABcA | d2 d>d dafd | e2 A>A A2 A/B/c/d/ | e2 e>e e2 f2 | feef e2 f2 | 
 ef/e/ d/c/B/A/ c>dB^G |1 A2{AB} A>B AG :|2 A2 A>A A2 |] A/B/c/d/ | e2 e>e e2 B/c/d/e/ | 
 f2 f>f f2 d>f | g2 a>g f2 g>f | e>dcB AGFA | d2 d>d d2 g/f/e/d/ | cBBB B2 e/d/c/B/ | A2 d>f agfe | 
 d2 d>d d2 :|  