Utilizing the provided musical theme and letter-based structure, compose a piece of music.
X:1
L:1/8
M:4/4
K:D
['d>ef>d c>Bc>A d>AF>G A2 G>F G>AB>c d>e^d>e', 'd>ef>d A>ce>c A>=ce>c B2 B2 G>Bd>G']  
X:1
L:1/8
M:4/4
K:D
 A2 | d>ef>d c>Bc>A | d>AF>G A2 G>F | G>AB>c | d>e^d>e | f>ed>B c>AB>c | d>ef>d c>Bc>A | 
 d>AF>G A2 G>F | G>AB>c d>e^d>e | f>dc>A d2 :| A2 | d>ef>d A>ce>c | A>=ce>c B2 B2 | G>Bd>G F>Ad>A | 
 ^G>Bd>f e>AB>c | d>ef>d A>ce>c | A>=ce>c B2 B2 | G>Bd>G F>Ad>e | f>dc>A d2 :|  