Develop musical pieces that incorporate the given motif and follow the specified structure.
X:1
L:1/8
M:2/2
K:D
['Bc dcBA d3 f e2 E2 E2', 'D2 Bc dcBA BcdB edcB cdec dcde'  
X:1
L:1/8
M:2/2
K:D
 Bc | dcBA d3 f | e2 E2 E2 Bc | dBcA d3 A | F2 D2 D2 a2 | faba fgaf | gfed e2 de | f2 ed BdAd | 
 F2 D2 D2 :: Bc | dcBA BcdB | edcB cdec | dcde defg | abag fgaf | gaba fgaf | gfed e2 de | 
 f2 ed BdAd | F2 D2 D2 :|  