Construct a musical work that combines the specified alphabet-based pattern with the given melodic theme.
X:1
L:1/8
M:2/2
K:A
['cA GABc dcBA', '(3aaa Aa']  
X:1
L:1/8
M:2/2
K:A
 E | [CEA]2 cA GABc | dcBA GEGB | (3AAA cA Bcdf | ecdB{d} cAAa | (3AAA cA GABc | dcBA GEFG | 
 AcEc ABcd | ecdB cA A :| a | (3aaa Aa fddf | (3bbb Bb geeg | (3aaa Aa fdfa | ecdB{d} cAAa | 
 (3aaa Aa fddf | (3bbb Bb gefg | agae fdfa | ecdB cA [CE] ||  