Generate a musical piece using the presented motif and follow the alphabetical structure provided.
X:1
L:1/8
M:4/4
K:A
['decd B2 ed', 'B2 ed']  
X:1
L:1/8
M:4/4
K:A
 ed | cdBc A2 Bc | decd B2 ed | cefe Befe | decd B2 ed | cdBc A2 Bc | decd B2 ed | cedc BdcB | 
 A2 A2 A2 :: EF | GABc d2 cB | cAce a2 ag | gffe eddc | BAGA B2 ed | cdBc A2 Bc | decd B2 ed | 
 cedc BdcB | A2 A2 A2 :|  