Construct a musical work that combines the specified alphabet-based pattern with the given melodic theme.
X:1
L:1/16
M:3/4
K:Bb
['F3 G F4 D4 B3 G F8']  
X:1
L:1/16
M:3/4
K:Bb
 F3 G | F4 D4 B3 G | F8 B2c2 | d6 c2B2 A2 | B8 A3 B | c6 c2A2 F2 | B8 A3 B | c6 c2A2 F2 | B8 F3 G | 
 F4 D4 B3 G | F8 B2c2 | d6 c2B2 A2 | B8 ||  