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:G
['', 'dB B2', 'g2 bg fgaf']  
X:1
L:1/8
M:4/4
K:G
 gc || dB B2 dBGB | dBBA Bdge | dB B2 dBGB | cBce agfe | dB B2 dBGA | BABd gfga | bagb agfa |1 
 gfga bage :|2 gfed Beef || g2 bg fgaf | gafg edBd | g2 bg fgaf | gfed Beef | g2 bg fgaf | 
 gafg edBd | gfga bgaf |1 gfed Beef :|2 gfed Bdge ||  