Develop musical pieces that incorporate the given motif and follow the specified structure.
X:1
L:1/8
Q:1/4=120
M:2/4
K:D
['|{de} fA', 'b>f e>f g/f/e/d/ d/4e/4f/ BB f/>e/ d/4e/4f/'  
X:1
L:1/8
Q:1/4=120
M:2/4
K:D
"^Moderately" f/>e/ |{de} fA A>B | d>e d>f | e>f (g/f/)(e/d/) |{de} fB Bf/>e/ |{de} fA AB | 
 d>e dd'/a/ | b>a b/c'/d'/a/ | fd d :: a | b/>a/b/c'/ d'>f | g/f/g/a/ b>f | e>f g/f/e/d/ | 
 d/4e/4f/ BB f/>e/ | d/4e/4f/ AAB | d>edd'a | b>a b/c'/d'/a/ | fdd :|  