Construct a musical work that combines the specified alphabet-based pattern with the given melodic theme.
X:1
L:1/8
M:4/4
K:C
['c>A (3(AAA) (eA)ce eaga fedc', 'z e2 (ce) Aece aAgA fAeg f2']  
X:1
L:1/8
M:4/4
K:C
[M:2/2][K:A] .abc c>A (3(AAA) (eA)ce | eaga fedc | d>B (3(BBB) (fB)de | fefg afed | 
 c>A (3(AAA) (eA)ce | eaga fedc | defg abaf | (3(efg) (ae) cAA z || e2 (ce) Aece | aAgA fAeg | 
 f2 (df) Bfdf | bBaB gBfB | (3(efe) (ce) aece | eaga fedc | defg abaf | (3(efg) (ae) eAA z |]  