Craft a musical composition by incorporating the provided motif and the alphabetical representation of the given sequence.
X:1
L:1/8
Q:1/4=90
M:2/4
K:Emin
['G/GF/ GA', 'e2 d2 B4', 'GA B/BA/ BB ee/gd/e B4 B/ed/ BA', 'd2 B4']  
X:1
L:1/8
Q:1/4=90
M:2/4
K:Emin
 G/GF/ GA | B/BA/ BB | e2 d2 | B4 | B/ed/ BA | G/GF/ GA | B2 A2 | G4 :: e2 d2 | B4 | e2 d2 | B4 | 
 B/ed/ BA | G/GF/ GA | B2 A2 | G4 ::"^instrumental variations" G/GF/ GA | B/BA/ BB | ee/gd/e | B4 | 
 B/ed/ BA | G/GF/ GA | BB/dG/A | G4 :: e2 d2 | B4 | e2 d2 | B4 | B/ed/ BA | G/GF/ GA | BB/dG/A | 
 G4 :|  