Craft a music piece according to the prescribed structure and the input theme.
X:1
L:1/8
M:2/2
K:G
['g z', '(de)(dB) (gf)(ge)'  
X:1
L:1/8
M:2/2
K:G
 G2 (BG) (dc)(BG) | G z g z f z e z | (de)(dB) (de)(dB) | (AG)(FG) (Ac)(BA) | G2 BG (dcBA) | 
 g z g z f z e z | (de)(dB) (de)(dB) | (AG)(AB) G2 z2 || D2 (FD) (AG)(FE) | D z c z B z A z | 
 G2 BG (dc)(BA) | G z g z f z e z | (de)(dB) (gf)(ge) | (de)(dB) (gf)(ge) | d2 (gf) (ed)(cB) | 
 (Ac) (FA) (GFED) ||  