Construct a music composition that complies with the designated structure and theme.
X:1
L:1/16
Q:1/8=80
M:4/4
K:C
['B2B2 d2c2 A2A2 c2B2 GBdB A4 D4', 'dcBA GAGA FAFA GAGA ABAc Bdgf edcB'  
X:1
L:1/16
Q:1/8=80
M:4/4
K:C
[M:2/4][K:G] f2O .Md2c2 B2B2 | d2c2 A2A2 | c2B2 GBdB | A4 D4 |"^5" G2G2 A2A2 | B2B2 c2c2 | 
 Bdgf edcB | B4 A4 |"^9" d2c2 B2B2 | d2c2 A2A2 | c2B2 GBdB | A4 D4 |"^13" G2>B2 A2>c2 | 
 B2>g2 fedc | B4 A4 | G6 z2 :|"^17" d2>c2 BABc | dBdB edcB | c2>B2 ABAB | cBcA dcBA | 
"^21" GAGA FAFA | GAGA ABAc | Bdgf edcB | B4 A4 |"^25" dedc BABc | dBGA bgdB | cdcB AGAB | 
 cBgf afdc |"^29" Bgfg fedc | Bgfg a/g/f/e/ dc | B2>G2 A4 | G8- G8 |]  