Utilizing the provided musical theme and letter-based structure, compose a piece of music.
X:1
L:1/8
M:6/8
K:D
['DAd cde edc', "ecA B/c/df gfg ad'a c'af def gfe"]  
X:1
L:1/8
M:6/8
K:D
|: DAd cde | edc dAG | FAd GAd | FAd EAd | DAd cde | edc de/f/g | agf fed |1 ABc d2 A :|2 ABc d3 |: 
 def gfe | fed ecA | B/c/df gfg | ad'a c'af | def gfe | fed ecA | B/c/dB AFE |1 FAc d2 A :|2 
 FAB c2 d ||  