Using the provided alphabet sequence and motif, develop a unique musical composition.
X:1
L:1/8
M:4/4
K:G
['G2 AG EG E/D/C D2 BB']  
X:1
L:1/8
M:4/4
K:G
 Bc | d2 BA G2 AG | EG E/D/C D2 BB | BG G/G/G GGFG | A6 dd | ddBA G2 AG | EG E/D/C D2 BB | 
 BBcB AAGF | G6 :|  