Utilize the provided motif and the alphabetically represented musical sequence to craft an original musical composition.
X:1
L:1/8
M:4/4
K:G
['B2 z ded dc c2 FFEF']  
X:1
L:1/8
M:4/4
K:G
 DEF | G3 GB>BAG | B2 A2 z DEF | G3 GB>BAG | A4 z AAA | A3 AAced | dB B2 z ded | dc c2 FFEF | 
 G2 D2 c3 B | A3 AAced | dg B2 z ded | dc c2 FFEF | G4 z |]  