Craft a music piece according to the prescribed structure and the input theme.
X:1
L:1/8
M:4/4
K:D
['A .d2 .d>.d (dc)(BA) d2 d>e dcBA', 'A3 f g>efg a2 fd d<BA>G G>FGA'  
X:1
L:1/8
M:4/4
K:D
 A | .d2 .d>.d (dc)(BA) | d2 d>e dcBA | d2 d>d d>faf | ecA>B A3 :: f | g>efg a2 fd | d<BA>G G>FGA | 
 B>cdB cecA | FAdc d3 :|  