Create a musical composition using the given alphabetical pattern and melodic theme.
X:1
L:1/8
M:4/4
K:Bb
['B,2 B,>B (BAG)F', 'dBB d/e/ f>BTf>d f>BTg>f fBf>B{Bc} dccd/e/ (f<B)f>d']  
X:1
L:1/8
M:4/4
K:Bb
 D | B,2 B,>B (BAG)F | TG>FGB cCCD | B,2 B,>B (BAG)F | G/A/B c/d/e dBB :| d/e/ | f>BTf>d f>BTg>f | 
 fBf>B{Bc} dccd/e/ | (f<B)f>d (f>B)g>B | F>B{d} cB/c/{c} dBBd/e/ | f>BTd>d fBTg>f | 
 fBf>d{Bc} dccd/e/ | B,2 TB,>B BAGF | G/A/B c/d/e dBB ||  