Develop musical pieces that incorporate the given motif and follow the specified structure.
X:1
L:1/8
M:6/8
K:D
['dfa afa', 'B AFD DFA'  
X:1
L:1/8
M:6/8
K:D
 uA | dfa afa | f2 d d2 A | dfa afa | g2 e e2 A | dfa afa | bgb a2 f | gfg eag | f2 d d2 :: B | 
 AFD DFA | dcB A2 B | AFD DFA | B2 E E2 B | AFD DFA | dcB A2 f | gfg eag | f2 d d2 :|  