Write a musical work incorporating the specified theme and letter-based framework.
X:1
L:1/8
M:2/4
K:C
['c z']  
X:1
L:1/8
M:2/4
K:C
 G | G A (G F) | E2 F G | A- A A- A | G2 G G | (A B) (c d) | (e d) (c B) | c z c z | c3 (c/ d/) | 
 e- e e e | d2 d d | c- c c c | B2 B B | (AB) (cd) | (ed) (c B) | c z c z | c3 |]  