Create a musical composition following the given alphabetical pattern and incorporating the provided motif.
X:1
L:1/8
M:4/4
K:Bb
['B2 (3DFB d2 c>B A>cB>G F2 ^F2', 'G>Bd>g ^f>ec>A ^F2 e2 (3ded (3cdc (3BcB']  
X:1
L:1/8
M:4/4
K:Bb
|: B2 (3DFB d2 c>B | A>cB>G F2 ^F2 |1 (3GGG G>B e>dc>B | A>f=e>f (3agf (3_edc :|1 
 (3GAB (3=Bcd e>FG>A | B2 d2 B2 :: b>a | g>dB>d G>Bd>g | ^f>ec>A ^F2 e2 | 
 (3ded (3cdc (3BcB (3ABA |1 G>AB>c d2 :|2 G2 z2 [AE]4 |]  