Craft a piece of music that integrates both the suggested theme and letter-based structure.
X:1
L:1/8
M:3/8
K:C
['CCC B,>A,G, A,A,B, C>DC']  
X:1
L:1/8
M:3/8
K:C
 CCC | B,>A,G, | A,A,B, | C>DC | CCC | B,>A,G, | A,A,B, | C>DC | EEE | FFF | DDD | GGG | C2 C | 
 D2 D | G,A,B, | C2 z |]  