Craft a music piece according to the prescribed structure and the input theme.
X:1
L:1/8
M:2/4
K:Eb
['BF F2']  
X:1
L:1/8
M:2/4
K:Eb
 ccBB | cc G2 | GcBG/B/ | FG/F/EC | F>G B2 | cG G2 | FBFG/F/ | C2 C2 | EC/E/EC | F>GBB | BGFE | 
 E2 C2 | B2 c>B | BG G2 | BF F2 | E C3 | cc B2 | cc/B/ G2 | ccBG | FG/F/EC | F>G B2 | cc/B/ G2 | 
 BF F2 | C4 | C/E/C/E<EC/ | FGBB | BGFE | EC C2 | B2 cB/B/ | BGGF/G/ | BF F2 | E C3 |]  