Craft a music piece according to the prescribed structure and the input theme.
X:1
L:1/8
M:4/4
K:D
['dB ADFD AAAF GFEF', 'dfec dcAB'  
X:1
L:1/8
M:4/4
K:D
 dB | ADFD AAAF | GFEF GBdB | ADFD A2 B2 | cAGE D2 dB | ADFD AAAF | GFEF G2 FG | AAFA BBGB | 
 AFGE D2 || AB/c/ | dfec dcAB | cAdB cA A2 | dfec dcAB | cAGE D2 AB/c/ | dfec dcAB | cAdB cA A2 | 
 ffdf e2 dB | cAGE D2 ||  