Develop a musical composition that includes the supplied motif while following the designated alphabetical pattern.
X:1
L:1/8
M:4/4
K:G
['dB B2', 'dB B2']  
X:1
L:1/8
M:4/4
K:G
|: dB B2 dGBd | cBcd efge | dB B2 dGBG | A2 FA DAFA | dB B2 dGBd | cBcd efge | dG (3Bcd gdBG |1 
 FGAF G2 ge :|2 FGAF G2 Bc |: dB B2 dBgb | aged efge | dB B2 dGBG | AD (3EFG ABcA | dB B2 dBgb | 
 agef g3 e | dG (3Bcd gdBG |1 FGAF G2 Bc :|2 FGAF G2 ge ||  