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
['f/f/f fe', 'ed cefg agfa eaca B2']  
X:1
L:1/8
M:2/2
K:A
 A/A/A A2 A>cec | B/B/B cA F2 EF | A/A/A Acec |1 f/f/f fe fefa :|2 f/f/f fe fefg || agab aeea | 
 fgag f2 ed | cefg agfa | eaca B2 AF :|  