Construct a musical work that combines the specified alphabet-based pattern with the given melodic theme.
X:1
L:1/8
M:3/2
K:Bb
['d3 c', 'c3 B']  
X:1
L:1/8
M:3/2
K:Bb
 B | B3 f b2 ag f3 e | d3 c BFBc c3 B/c/ | d2 (cB) f2 (ed) e3 f | g3 f eded c3 B | 
 A2 (GF) c2 cd d3 c | c8- c3 :: A | A3 B cG B2 B3 A | G6 g2 f3 d | e2 (dc) =e2 fg g3 f/g/ | 
 a2 f4 f2 b3 a | g3 f/e/ d2 e2 c3 B | c2 F4 f2 a3 g | f3 e/d/ c2 de c3 B | B8- !fermata!B3 |]  