Create musical pieces following the given structure and incorporating the suggested musical theme.
X:1
L:1/8
M:2/4
K:D
['e/c/e/c/ ee', 'gg b>(a g)f |{fg} (fe/f/) ge ac'  
X:1
L:1/8
M:2/4
K:D
 e/c/e/c/ ee | f/d/f/d/ ff | e/c/e/c/ ee | (gf) d2 ::{fg} (fe/f/) gg | b>(a g)f |{fg} (fe/f/) ge | 
 ac d2 :|  