Construct a music composition that complies with the designated structure and theme.
X:1
L:1/8
M:3/4
K:C
['CD E2 E2 FE D2 D2 ED']  
X:1
L:1/8
M:3/4
K:C
 CD | E2 E2 FE | D2 D2 ED | C2 E2 DD | C2 z2 CD | E2 E2 FE | D2 D2 ED | C2 E2 DD | C2 z2 CD | 
 E2 E2 FE | D2 D2 ED | C2 E2 DD | C2 z2 E2 CE | DDC z E2 CE | DDCzEECE | D2 CzEECE | D2 CzGG c2 | 
 GG c2 GFED | DC C2 |]  