Craft a musical composition with the supplied motif and conforming to the necessary format.
X:1
L:1/8
Q:1/8=150
M:2/2
K:G
['Bc dcBd', 'Bc dBbg dBGB'  
X:1
L:1/8
Q:1/8=150
M:2/2
K:G
 Bc | dcBd cAFA | GFGA G2 AB | cBAB cBAG | FGEF D2 Bc | dcBd cA FA | Ggfa g2 de | fdBd cAFA | 
 GFGA G2 :| Bc | dBbg dBGB | dcAB G2 AB | cAag fedc | Bdce d2 Bc | dBbg dBGB | dgfa d2 de | 
 fdBd cAFA | GFGA G2 :|  