Construct a musical work that combines the specified alphabet-based pattern with the given melodic theme.
X:1
L:1/8
M:2/4
K:Bmin
['B>B BB dB', 'de fd Bc dB Bd ec Ae/d/']  
X:1
L:1/8
M:2/4
K:Bmin
 B>B BB | dB Bd | AF Fd | AF D2 | G>F EF | GA Bc/B/ | AB cd | ec A2 | B>B BB | dB BF | Bc d/c/B | 
 =c2 BA | GB dB | Ac ed | ce a>g | fd de |: fd Bc | dB Bd | ec Ae/d/ | cA A2 | FA dA | GB dB | 
 Ac a>g | fd d2 :|  