Create a musical piece using the provided alphabetic structure and motif.
X:1
L:1/16
M:2/4
K:D
['D2d2 d2(cd) ecAc', 'afaf bgbg']  
X:1
L:1/16
M:2/4
K:D
 (AF) | D2d2 d2(cd) | ecAc d2(de) | fdfd gege | afdf ecAF | D2d2 d2(cd) | ecAc d2(cd) | 
 ecec dBA^G | A2A2A2 :: (fg) | agfe dcBA | B2G2G2 (ga) | bagf edcB | c2A2A2 (fg) | afaf bgbg | 
 afaf bgbg | afbg fedc | d2d2d2 :|  