Construct a music composition that complies with the designated structure and theme.
X:1
L:1/8
M:12/8
K:Emin
['DEF EBB', 'G2 ABe ABe gAB efg fAA fAf'  
X:1
L:1/8
M:12/8
K:Emin
 DEF EBB DEF EBB | DAF Gdd z AF G d2 | Bcc cAG cEB EAG |1 Eee dAG A2 A G F2 :|2 Eee dAG A5zE || 
 ABe ABe gAB efg | fAA fAf eGG E G2 | ABe ABe gAB efg | fAA fAf eG g2 f2 :|  