Craft a piece of music that integrates both the suggested theme and letter-based structure.
X:1
L:1/16
M:3/4
K:D
['e2>d2 cBcd', 'gfed cdcA B2G2', 'cdcA BAcd']  
X:1
L:1/16
M:3/4
K:D
|: e2>d2 cBcd e4 | e2ef g2fd e4 | e2>d2 cBcd e2c2 | c2BA GABG E4 | E2ed cBcd e2ef | 
 g2fg a2g2 e2d2 | cdcA BAGB cdcB | ABcd efga gfed :| cdcA B2G2 A2 z2 |: cdcA BAcd cABG | 
 cdFE cdcA BAcd | efga gfed cded | cdcA BAcd cABG | cdFE cdcA BAcd | efga gfed cded :|  