Design a musical work that abides by the outlined structure and integrates the assigned theme.
X:1
L:1/8
M:4/4
K:C
['(g2 eg) (fe) d2', 'B2 B2 cB(ce) d4 c2'  
X:1
L:1/8
M:4/4
K:C
 (g2 eg) (fe) d2 | (g2 eg) (fe) d2 | (c2 e)(d c2) dB | c2 de c2 ce | c2 de fedc | BcdB G4 | 
 (g2 eg) (fe) d2 | (g2 eg) (fe) d2 | c2 ed c2 dB | c4 z G || c3 d B2 B2 | cB(ce) d4 | 
 c2 (de) (fe)dc | BcdB G4 | c2{cd} c2 B2 B2 | cB(ce) d4 | c2 de (fe)dc | B(cd)B c4 ||  