Create musical pieces following the given structure and incorporating the suggested musical theme.
X:1
L:1/8
M:4/4
K:D
['dfec A2 AB', 'd2 (fd) adfd'  
X:1
L:1/8
M:4/4
K:D
 dfec A2 AB | cdef{a} gfge | dfec A2 AB | cBcG TED D2 :| d2 (fd) adfd | c2 (ec) gcec | 
 d2 (fd) adfd | eaTag ed d2 | defg afge | cdef g2 fg | (3agf (3gfe fded | ea{b}ag ed d2 ||  