Compose a musical piece in accordance with the outlined theme and structure.
X:1
L:1/8
M:4/4
K:C
['eg e/f/g', 'G4 cdef g2 g2 f/g/a gf f4', 'c4 g2 ed c2 c2 Bc AB'  
X:1
L:1/8
M:4/4
K:C
 c2 AB c2 c2 | edcB cd c2 | dedG d2 d2 | fece f4 | eg e/f/g fa f/g/a | eg e/f/g fedc | 
 B2 AG A2 GF | G4 G4 || cdef g2 g2 | f/g/a gf f4 | eg e/f/g fedc | dcBc d2 G2 | c2 c2 BcdB | 
 cBAG F2 ef | gfed cBGB | c4 c4 || g2 ed c2 c2 | Bc AB G3 c | BcAB GcBc | d2 e2 d4 | 
 e2 e/d/e fdec | B2 B/A/B cABG | f2 f/e/f gefd | c2 c/B/c dBcG | g2 g/f/g afge | dcde f3 e | 
 dBcA G2 cB | c2 CD C4 ||  