Utilizing the provided musical theme and letter-based structure, compose a piece of music.
X:1
L:1/4
M:4/4
K:C
['c c']  
X:1
L:1/4
M:4/4
K:C
 G | E E E D | C4 | F F F E | D4 | F F2 E | D D E F/F/ | G G2 F | E3 z | G G/G/ G/G/ G | 
 c c2 c/B/ | A A2 A | c c c c | B/B/ B2 B | B G2 G | G G A B | c3 ||  