Create a musical composition based on the alphabetic representation of the predetermined pattern and the given melodic theme.
X:1
L:1/8
M:2/2
K:Emin
['B2 B^c', 'eBef geBg']  
X:1
L:1/8
M:2/2
K:Emin
 F | E2 EF B2 B^c | d2 AG FDDF |1 E2 DF B2 B^c | dBAF GEE :|2 EFGA B2 Ba | gef^d e/e/e e || B | 
 eBef geBg | fbag fddf | eBef geBg | bgaf e/e/e eB | eBef geBg | fdAG FEDf | geBg AfGe | 
 FdAF E/E/E E ||  