Arrange a song combining the mentioned alphabetical representation of a musical pattern and the given melodic theme.
X:1
L:1/8
M:4/4
K:Bb
['BFDF BFDF', 'Bdfb fdBd (cBc)d']  
X:1
L:1/8
M:4/4
K:Bb
 A | BFDF BFDF | ECC=B cGGA | BFDF BFDF ECF>E DB,B, :| A | Bdfb fdBd | (cBc)d cGGA | Bdfb fdBd | 
 (cBc)d B/B/B BF | Bdfb fdBd | (cBc)d cGGg | fBgB aBbB | (cBc)d B/B/B B |]  