Write a musical work incorporating the specified theme and letter-based framework.
X:1
L:1/8
M:2/4
K:D
['cd B>A']  
X:1
L:1/8
M:2/4
K:D
 E | A(A/G/) AB | GF EE | A(A/G/) A/A/B | c(d/c/) B e/e/ | ed/c/ d(c/B/) | cd B>A | AA/G/ FB | 
 GF E B | AG FB | GF Ee | ee/d/ cd | B>A A z |]  