Develop a musical composition using both the specified melodic theme and the alphabetical pattern naming.
X:1
L:1/8
Q:1/4=140
M:4/4
K:none
['fBBb fBde', 'eAce fBbB']  
X:1
L:1/8
Q:1/4=140
M:4/4
K:none
 fBBb fBde | fBBb eAce | fBBb fBde | fgaf eAce :: fBbB fBde | fBbB eAce | fBbB fBde | fgaf eAce | 
 fBbB fBde | fBbB eAce | fBbB aBgB | fBgB aAce :|  