Construct a music composition that complies with the designated structure and theme.
X:1
L:1/8
M:4/4
K:D
['AFDF AFDF A2 AG EF G2 AFDF', 'fage dfec dcAG EF'  
X:1
L:1/8
M:4/4
K:D
 AFDF AFDF | A2 AG EF G2 | AFDF AF D2 | AFEG FD D2 :| fage d2 (3Bcd | f2 af ge d2 | fage dfec | 
 dcAG EF G2 | fage d2 (3Bcd | e2 af gede | fage dfec | dcAG EF G2 ||  