Develop musical pieces that incorporate the given motif and follow the specified structure.
X:1
L:1/8
M:4/4
K:D
['DFAF BAGB AGFE FD D2 DEFD', 'd3 e fedf'  
X:1
L:1/8
M:4/4
K:D
 (3dcB | A3 F DFAF | BAGB AGFE | FD D2 DEFD | EAAE AAEA | F3 A DFAF | BAGB AGFE | FD D2 DEFD | 
 dBAF D2 :: (3ABc | d3 e fedf | g2 fg edce | d3 e fedf | eAAe AAeA | d3 e fedf | g2 fg edce | 
 defd edce | dBAF D2 :|  