Craft a music piece according to the prescribed structure and the input theme.
X:1
L:1/4
M:3/4
K:G
['D G', 'D G'  
X:1
L:1/4
M:3/4
K:G
|: D | G B (d/c/) | B G G | A (c/B/) (A/G/) | F D D | G (B/A/) (G/F/) | E C E | D G F | G2 :| 
 (B/c/) | d (B/c/) (d/e/) | d c B | c (A/B/) (c/d/) | c B A | B (G/A/) (B/c/) | B A G | F d ^c | 
 d2 D | G B (d/c/) | B G G | A (c/B/) (A/G/) | F D D | G (B/A/) (G/F/) | E C E | D G F | G2 z |]  