Compose a piece using the specified musical pattern based on the alphabet and the provided melodic theme.
X:1
L:1/4
M:4/4
K:C
['', 'e/d/ e A', 'c B/A/ G']  
X:1
L:1/4
M:4/4
K:C
 e/d/ |: e A A e/d/ | e A A3/2 B/ | c c B c | d3 c/d/ | e e d/c/ B | c c B/A/ G | A c B/A/ G |1 
 A3 z :|2 A3 z |: A/B/ c A/B/ c | B G G2 | A/B/ c A/B/ c | d3 c/d/ | e e d/c/ B | c c B/A/ G | 
 A c B/A/ G |1 A3 z :|2 A3 z ||  