Compose a piece of music that adheres to the specified alphabetical framework and includes the provided theme.
X:1
L:1/8
M:6/8
K:C
['e2 g gfe', 'ge z']  
X:1
L:1/8
M:6/8
K:C
 e2 g gfe | f2 a agf | e2 g gfe | fdd d3 | e2 g gfe | f2 a agf | ege dfd | ecc c3 :: ge z ge z | 
 fdd d3 | fd z fd z | ecc c3 | ge z ge z | fdd d2 d | efg gfe | d3 d2 z |]  