Construct a musical work that combines the specified alphabet-based pattern with the given melodic theme.
X:1
L:1/8
M:6/8
K:Bmin
['B3 BAF']  
X:1
L:1/8
M:6/8
K:Bmin
 B3 BAF | B3 ABd | B3 BAF |1 GBd fed :|2 G2 f edf |]: a3 fed | B2 A B/c/df | a3 fed |1 B2 f edf :|2 
 B2 f ecA ||  