Compose a piece of music following the specified structure and theme.
X:1
L:1/8
M:2/2
K:Dmix
['defg fe (3def edcB cBAB cdef gf'  
X:1
L:1/8
M:2/2
K:Dmix
"D" DEFG ABAF |"G" GABG"C" c2 B2 |"D" ABAF DFAF |"A7" G E2 D E4 |"D" DEFG ABAF |"G" GABG"C" c2 B2 | 
"D" ABAF"A7" GEAG |"D" F D2 C D4 ::"D" defg fe (3def |"Am" edcB cBAB |"C" cdef gf (3efg | 
"D" f d2 c d4 |"D" defg fe (3def |"Am" edcB cBAB |"C" cdef gf (3efg |"A7" fae^c"D" d2 A2 :|  