Develop a musical piece using the given theme and incorporating the letter-based structure provided.
X:1
L:1/8
Q:1/4=120
M:4/4
K:C
['c2 e>c f>d g>e', 'B2 c2']  
X:1
L:1/8
Q:1/4=120
M:4/4
K:C
 GG | c2 e>c f>d g>e | c2 e>c f>d g>e | d2 f>d c2 TB2 | c2 c>c c2 e2 | d2 g2 ^f2 e2 | 
 d2 d>d (3d^cd (3ed=c | (3Bcd (3ecA G2 ^F2 | G2 G>G G2 || A2 | B2 c2 d2 B2 | c2 f2 e2 d2 | 
 (3cBc (3ecA B2 c2 | d2 d>d d2 f2 | (3ede (3gfd c2 TB2 | A2 A>A A2 G>G | c2 e>c f>d g>e | 
 c2 e>c f>d g>e | d2 f>d c2 TB2 | c2 c>c c2 a2 | g2 c'2 b2 a2 | g2 g>g (3g^fg (3ag=f | 
 (3efg (3afd c2 TB2 | c2 c>c c2 |]  